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#psychotherapy

156 posts21 participants1 post today

DATE: April 26, 2025 at 07:35AM
SOURCE: SOCIALPSYCHOLOGY.ORG

TITLE: When the Brain Lacks Fuel, Exercise Still Protects Memory

URL: socialpsychology.org/client/re

Source: Google News - Health

New research suggests that exercise may protect brain function even when the body can't produce ketones, a vital energy source for cognition. When liver function is impaired and ketone levels drop, memory and learning typically suffer—but physical activity can still counteract those effects. This finding means that exercise may trigger alternative brain-supporting mechanisms beyond just energy supply, offering a powerful tool for preserving...

URL: socialpsychology.org/client/re

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DATE: April 26, 2025 at 04:00PM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------

TITLE: Neuroscientists show children’s brains function differently during book reading and screen time

URL: psypost.org/neuroscientists-sh

A new study published in Developmental Science has found that preschool children’s brain activity differs when they are read to from a book compared to when they view and listen to stories on a screen. Using a neuroimaging technique called functional near-infrared spectroscopy, the researchers observed greater activation in the right hemisphere of the brain during live book reading, particularly in regions involved in social understanding, while screen time produced more balanced activity across both hemispheres.

Reading to young children plays an important role in supporting language development and brain growth. Book reading offers opportunities for children to hear rich language, learn the structure of stories, build vocabulary, and engage in social interaction with caregivers. In contrast, growing concerns have emerged about the effects of screen time, as many studies link high screen exposure to language delays and weaker connections in brain areas important for literacy.

While past research has demonstrated broad differences between book reading and screen media in children’s outcomes, fewer studies have directly compared what happens in the brain during these two activities. The researchers aimed to fill this gap by measuring brain activity during live reading and screen-based storytelling in preschoolers.

The study involved 28 typically developing children between the ages of 3 and 6 years old. All participants came from predominantly English-speaking households, although some were multilingual. The children listened to two different stories: one presented during a live book reading session, and the other delivered as an audio recording paired with images on a screen. In the book reading condition, a live experimenter sat beside the child, reading aloud from a printed book.

In the screen time condition, the child viewed the story on a computer while hearing a recorded voice. Both stories were carefully matched for length, vocabulary, and content. Brain activity was recorded throughout using functional near-infrared spectroscopy, which measures changes in blood oxygenation linked to neural activity.

The researchers focused on specific brain regions involved in language, narrative understanding, and social cognition, including the inferior and middle frontal gyri, the superior and middle temporal gyri, and the temporal parietal junction. The team analyzed differences in activation across left and right hemispheres during each condition.

Results showed that live book reading produced greater activation in the right temporal parietal junction, a brain area associated with social processes like joint attention and understanding others’ thoughts. Activation in this area was significant during the book reading condition but not during the screen time condition. Across the broader regions of interest, brain responses during book reading were stronger in the right hemisphere than in the left, suggesting a right-lateralized pattern. In contrast, brain responses during screen time were relatively even across both hemispheres, showing no strong lateralization.

The findings suggest that live book reading may engage preschool children in more socially oriented cognitive processes compared to solitary screen time. Book reading may encourage children to focus on the reader’s emotions, intentions, and shared attention toward the book, all of which involve right-hemisphere brain networks. In contrast, screen-based storytelling might involve more isolated language processing, relying less on social engagement.

While these patterns are consistent with previous research showing that book reading benefits language and social development, the study also highlights important nuances. For example, the right-lateralized response during live reading might reflect children’s sensitivity to the human voice, facial expressions, and social interaction, even if the reading interaction itself was somewhat scripted and controlled in this study.

As with any study, there are limitations. The relatively small sample size, particularly when accounting for missing data in some brain channels, limits the strength of the conclusions. Many of the children also came from highly educated and high-income households, so the findings may not generalize to more diverse populations.

The researchers also noted that the structured nature of the book reading task—designed to minimize variation across participants—reduced the natural, conversational aspects of typical reading interactions between parents and children. Future studies could examine brain activity during more naturalistic reading sessions that include back-and-forth conversation and emotional expression.

In addition, although the study showed different patterns of brain activation between book reading and screen time, it did not directly measure children’s language learning outcomes. Future research could explore whether these neural differences are linked to improvements in vocabulary, comprehension, or later academic skills.

Despite these limitations, the study adds important new evidence to the understanding of how different early experiences shape brain function. It reinforces previous findings that social interaction during language exposure matters for young children’s brain development. Live, shared activities like book reading seem to recruit brain systems involved in understanding others and processing complex social cues, which could give children a stronger foundation for later communication and learning.

The results also suggest that screen-based media might not activate the same social brain systems, especially when the child is passively viewing without a live social partner. While not all screen time is equal, and some interactive or educational media may still be beneficial, the findings support recommendations that live social interaction remains important during early childhood.

The study, “Do Children’s Brains Function Differently During Book Reading and Screen Time? A fNIRS Study,” was authored by Meredith Pecukonis, Meryem Yücel, Henry Lee, Cory Knox, David A. Boas, and Helen Tager-Flusberg.

URL: psypost.org/neuroscientists-sh

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PsyPost Psychology News · Neuroscientists show children’s brains function differently during book reading and screen timeBy Eric W. Dolan

DATE: April 26, 2025 at 02:00PM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------

TITLE: New study suggests entertainment is key to populist political success

URL: psypost.org/new-study-suggests

A new study published in the British Journal of Psychology suggests that people are more likely to support populist politicians when they find them entertaining. Across four studies involving United States participants, researchers found that the extent to which people viewed a leader as exciting, engaging, or attention-grabbing predicted their support—more strongly for populist leaders like Donald Trump and Bernie Sanders than for non-populist figures like Joe Biden or Mitt Romney. The findings offer new insights into how emotional experiences and personal style shape political preferences.

The researchers aimed to better understand why populist leaders have gained substantial support across many countries. Previous research had largely focused on negative emotions, such as fear or anger, as drivers of populist support. However, the researchers proposed that positive feelings—particularly the enjoyment of an entertaining political style—might also play an important role. They suggested that populist leaders, by portraying society as a struggle between the “corrupt elites” and the “noble people,” create emotionally charged narratives that are more gripping and emotionally intense than conventional political messages.

“Common explanations of populist support mostly focus on factors that ‘push’ people away from mainstream politics, such as feelings of anger, anxiety, and insecurity,” said study author Jan-Willem van Prooijen, an associate professor at VU Amsterdam, senior researcher at the NSCR, and Endowed Professor of Radicalization, Extremism, and Conspiracy Thinking at Maastricht University.

“But I believe that is only part of the story. Often a vote for a populist candidate is more than just a protest vote: Many voters are genuinely excited about populist leaders. What makes populist leaders so appealing? This research sought to find out to what extent being considered entertaining matters in populist support.”

To investigate this idea, the researchers conducted four preregistered studies with 1,802 participants based in the United States. Study 1 compared Trump and Biden voters, asking participants to rate how entertaining they found the leader they supported and how much they continued to support that leader. Study 2a and Study 2b shifted the focus to comparisons within political parties. In Study 2a, Republican voters rated both Donald Trump and Mitt Romney, while in Study 2b, Democratic voters rated Bernie Sanders and Joe Biden. Finally, Study 3 used an experimental design where participants were randomly assigned to read either a populist or a non-populist speech written by an unknown fictional politician. This approach allowed the researchers to isolate the effect of a populist style without the influence of prior knowledge about real-world political figures.

Across all four studies, entertainment appraisals consistently predicted greater political support, and this effect was stronger for populist figures. In Study 1, participants who found Trump more entertaining were more likely to support him, compared to Biden voters, whose support was less dependent on entertainment appraisals. Study 2a found the same pattern among Republicans: Trump’s support was more closely tied to entertainment than Romney’s. In Study 2b, the pattern held for Sanders compared to Biden, although the difference was smaller.

Study 3 provided the most direct evidence. Participants who read the populist speech found it more entertaining and reported stronger support for the fictional politician. Those in the non-populist condition still showed a link between entertainment and support, but the relationship was weaker. Importantly, participants exposed to the populist speech also reported more intense emotions, suggesting that emotional intensity—not just positive or negative feelings—plays a role in the appeal of populist rhetoric.

“In the first few studies, we compared existing and well-known politicians, both between parties (Trump vs. Biden) but also within parties (e.g., Trump vs. Romney). These are all well-known figures that everyone has an opinion about,” van Prooijen told PsyPost.

“What surprised me, however, is that we found these effects even when participants were exposed to an AI-generated populist or non-populist speech. So even for an unknown political figure, people are more likely to base their support on how entertaining they found a single speech when the speech was populist (blaming societal problems on corrupt elites that try to oppress the people) than non-populist (emphasizing a need to work together to solve societal problems).”

Another key finding was that general populist attitudes—such as distrust of elites and strong identification with “ordinary people”—predicted support for populist leaders through the pathway of entertainment. In other words, people who already held populist views tended to find populist leaders more entertaining, which in turn made them more likely to support them. This mediation effect did not appear for non-populist leaders.

“All politicians benefit to some extent from being considered entertaining by the public, but populist politicians benefit more from this than non-populist politicians,” van Prooijen explained. “This suggests that populism is a form of ‘popcorn politics’: Supporters of populist candidates are more strongly inclined to base their choice on superficial traits that might be considered entertaining, and which might distract from the actual contents of the proposed policies.”

The research was preregistered, meaning the researchers publicly documented their study designs, hypotheses, and analysis plans before collecting data. Preregistration is important because it helps prevent selective reporting and increases the credibility of the findings by making it clear that the analyses were planned in advance rather than chosen after seeing the results.

But, as with all research, there are still some limitations. Most participants were based in the United States, and the politicians tested were primarily American. Populist movements vary across countries, sometimes blending left-wing and right-wing ideas in ways that do not fit neatly into a U.S. political framework. Future research could explore whether the same entertainment-driven effects are present in other political systems, such as in Europe, Latin America, or Asia.

“So far, we have only examined these effects in the United States, but populist movements differ enormously in various regions of the world,” van Prooijen noted. “Moreover, we have not extensively distinguished between left- versus right-wing populist leaders. One of our studies tentatively suggested that these effects may be more pronounced for right-wing populism, but more research is needed to examine that possibility.”

“This line of research fits in a broader research goal to better understand the emotional underpinnings of populism. Researchers have often stressed that emotions are important, but then only focus on negative emotions such as anger and fear. Positive emotions also matter; for instance, populist rhetoric may give citizens hope for a better future. And, our findings suggest that the intensity of emotional experiences may actually be more closely associated with populism than the positive or negative valence of emotions per se. All of these issues are important to examine further in future research.”

The researchers emphasized that their work highlights the importance of considering positive and emotionally intense experiences when studying political preferences. Populist leaders often present simple solutions to complex problems, attack establishment figures, and portray themselves as champions of the people—all ingredients that make their messages more compelling and emotionally resonant.

“One of the things that have struck me for years is that populist leaders around the world often tend to be somewhat eccentric, attention-grabbing individuals who stir up the established order by seeking conflict,” van Prooijen explained. “This research suggest that these features, that some citizens might find entertaining, have an electoral function.”

The study, “Popcorn politics: Entertainment appraisals predict support for populist leaders,” was authored by Jan-Willem van Prooijen, Julia Kipperman, Yuxuan Li, Yifan Mo, and Paul Nachtwey.

URL: psypost.org/new-study-suggests

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PsyPost Psychology News · New study suggests entertainment is key to populist political successBy Eric W. Dolan

DATE: April 26, 2025 at 12:00PM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------

TITLE: Obese women tend to have more severe sexual disorder symptoms

URL: psypost.org/obese-women-tend-t

A study of overweight and obese women of reproductive age in Poland found that they tend to experience more severe symptoms of sexual dysfunctions and sexual preference disorders compared to their normal-weight peers. Women with more severe sexuality-related disorders also tended to report a lower quality of life. The research was published in Psychiatria Polska.

Sexuality-related disorders include a range of conditions that affect sexual function, desire, and preference, causing distress or difficulties in intimate relationships. Sexual dysfunctions refer to problems occurring during any phase of the sexual response cycle—desire, arousal, orgasm, or resolution. In women, these include disorders such as female sexual interest/arousal disorder, genito-pelvic pain/penetration disorder, and female orgasmic disorder.

In contrast, sexual preference disorders, often referred to in clinical settings as paraphilic disorders, involve atypical sexual interests that may cause harm or distress. Examples include fetishistic disorder, voyeuristic disorder, and sexual masochism disorder, although these conditions are rarer among women. Such conditions are only classified as disorders when they cause significant distress or impair functioning. Cultural, psychological, and relational factors play an important role in how these disorders manifest in women.

Study author Anna Fuksiewicz and her colleagues aimed to explore the frequency and severity of sexuality-related disorders in overweight and obese women, and to compare these findings to those in normal-weight women. They note that previous studies have found that 67% of individuals with excessive body weight report a reduced quality of sex life—a statistic that includes women.

The study included 95 women between 18 and 40 years of age. Among them, 51 had normal weight, 32 were classified as obese, and 12 were overweight. The average age of overweight and obese women was 25–26 years, while the average age of the normal-weight participants was 23 years.

Participants completed several assessments, including measures of eating attitudes (the Eating Attitude Test), beliefs about food (the Eating Beliefs Questionnaire), anxiety and depression symptoms (the Hospital Anxiety and Depression Scale), alcohol use (the Alcohol Use Disorders Identification Test), sexuality-related disorder symptoms (the Sexological Questionnaire), quality of life (the SF-36 Quality of Life Questionnaire), and difficulties in emotion regulation (the Difficulties in Emotion Regulation Scale).

The results showed that overweight and obese women tended to have worse scores across most measures. They exhibited less healthy eating habits, more severe symptoms of depression and anxiety, more severe symptoms of sexuality-related disorders, worse overall emotion regulation (though not on every subscale), and more maladaptive beliefs about food. Their quality of life was also worse compared to their normal-weight peers.

Women with more severe sexuality-related disorder symptoms were more likely to report a lower quality of life and higher levels of depression and anxiety. These factors were the strongest predictors of quality of life.

“Overweight or obese women show a higher occurrence of symptoms of sexuality-related disorders (especially sexual dysfunctions and sexual preference disorders) than women with a normal body weight. These symptoms are associated with difficulties in other areas of functioning and constitute a significant predictor of the quality of life,” the study authors concluded.

The study sheds light on the links between body mass status and sexual functioning. However, it should be noted that the study was conducted on a relatively small group of reproductive age women. Results on larger groups might not be identical. Additionally, the design of the study does not allow any causal inferences to be derived from the results.

The paper, “Symptoms of sexuality-related disorders in the group of overweight and obese women,” was authored by Anna Fuksiewicz, Barbara Kostecka, Emilia Kot, Aleksandra Jodko-Modlińska, and Katarzyna Kucharska.

URL: psypost.org/obese-women-tend-t

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PsyPost Psychology News · Obese women tend to have more severe sexual disorder symptomsBy Vladimir Hedrih

DATE: April 22, 2025 at 01:12PM
SOURCE: SCIENCE DAILY PSYCHOLOGY FEED

TITLE: Listeners use gestures to predict upcoming words

URL: sciencedaily.com/releases/2025

In face-to-face conversations, speakers use hand movements to signal meaning. But do listeners actually use these gestures to predict what someone might say next? In a study using virtual avatars, scientists show that listeners used the avatar's gestures to predict upcoming speech. Both behavioral and EEG data indicated that hand gestures facilitate language processing, illustrating the multimodal nature of human communication.

URL: sciencedaily.com/releases/2025

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DATE: April 25, 2025 at 11:48AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Nudges improve food choices and cut calories when shopping for groceries online

URL: sciencedaily.com/releases/2025

A team of researchers designed and tested a new digital toolkit that helps consumers make healthier grocery choices online -- an innovation that could play a major role in the global fight against chronic diseases such as heart disease, stroke and diabetes.

URL: sciencedaily.com/releases/2025

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DATE: April 22, 2025 at 01:12PM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Listeners use gestures to predict upcoming words

URL: sciencedaily.com/releases/2025

In face-to-face conversations, speakers use hand movements to signal meaning. But do listeners actually use these gestures to predict what someone might say next? In a study using virtual avatars, scientists show that listeners used the avatar's gestures to predict upcoming speech. Both behavioral and EEG data indicated that hand gestures facilitate language processing, illustrating the multimodal nature of human communication.

URL: sciencedaily.com/releases/2025

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DATE: April 22, 2025 at 01:12PM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Temporary anxiety impacts learning

URL: sciencedaily.com/releases/2025

Researchers found that a brief episode of anxiety may have a bigger influence on a person's ability to learn what is safe and what is not. A new study used a virtual reality game that involved picking flowers with bees in some of the blossoms that would 'sting' the participant, simulated by a mild electrical stimulation on the hand. Researchers discovered that temporary feelings of anxiety had the biggest impact on whether participants could learn to distinguish between the safe and dangerous areas, where the bees were and were not, not a person's general tendency to feel anxious.

URL: sciencedaily.com/releases/2025

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ScienceDailyTemporary anxiety impacts learningResearchers found that a brief episode of anxiety may have a bigger influence on a person's ability to learn what is safe and what is not. A new study used a virtual reality game that involved picking flowers with bees in some of the blossoms that would 'sting' the participant, simulated by a mild electrical stimulation on the hand. Researchers discovered that temporary feelings of anxiety had the biggest impact on whether participants could learn to distinguish between the safe and dangerous areas, where the bees were and were not, not a person's general tendency to feel anxious.

Hot take about one thought process that makes me sceptical of psychiatry and psychotherapy as a whole:

Your average psychiatrist's or psychotherapist's university education has been over a decade ago, often several.

First of all, all that knowledge is now horribly outdated, especially concerning only recently properly researched traits like autism or ADHD, but that's not the whole problem.

My own university experience also taught me that most students (sometimes including myself) just study to pass the next exam without really understanding or keeping most of what they're reading. Flawed science on the level of a school project is often still given a passing grade, especially to Bachelor's students.

That's all still assuming that your average psychiatrist or psychotherapist really even remembers most of their formal education! Who really remembers what they learned in school 20 years ago?

Most of them are just coasting along with Google and their "life experience", aka personal biases and heuristics. Your average psychiatrist or therapist is not sitting there studying new papers and reading up on cutting-edge neurodivergency findings after-hours. They'll just make assumptions.

If you add to all this the fact that most doctors and therapists are middle-class or upper-class middle-of-the-road centrists, liberals and conservatives with a traditional picture-book cishet spouse, kids, house and family dog... what can they really tell me about my very much different life?

Their only experience with trans people for example will usually at best be the textbook idea of "person born in the wrong body". They at best only know archetypal binary transsexual women and transsexual men and how to treat them.

What could they possibly have to tell me about my detransition experience or liminal experiences with my gender fluidity? Their entire idea of a trans woman is "man who feels like a woman, wants to live and pass as a woman and therefore needs medicine and social support to be happy." While that is even the best outcome, it doesn't even encompass the whole topic in the slightest.

The only thing that most of them are good for is prescribing medicine and bog-standard problems like burnout or depression.

The only psychiatrist or therapist I would trust is one who is still actively participating in the scientific community.

The decoupling of medical practice from medical theory has devastating effects. As much as it is unfeasible with the shortages we already have, there should simply be no practising doctors who aren't also constantly learning and up-to-date on scientific findings.

DATE: April 25, 2025 at 07:00PM
SOURCE: PSYCHIATRIC TIMES

Direct article link at end of text block below.

Enhance your understanding of major depressive disorder and its
treatment options via this expert panel discussion on adjunctive therapies
and antipsychotics. #ad Watch here: t.co/HjEqfAiYsz t.co/6ptk257BBv

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Articles can be found by scrolling down the page at Articles can be found at psychiatrictimes.com/news".

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Psychiatric Times · Atypical Antipsychotics for Adjunctive Treatment of Major Depressive Disorder: A Focus on Norepinephrine

DATE: April 25, 2025 at 11:34AM
SOURCE: SCIENCE DAILY PSYCHOLOGY FEED

TITLE: In Down syndrome mice, 40Hz light and sound improve cognition, neurogenesis, connectivity

URL: sciencedaily.com/releases/2025

A new study provides new evidence that sensory stimulation of a gamma-frequency brain rhythm may promote broad-based restorative neurological health response.

URL: sciencedaily.com/releases/2025

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ScienceDailyIn Down syndrome mice, 40Hz light and sound improve cognition, neurogenesis, connectivityA new study provides new evidence that sensory stimulation of a gamma-frequency brain rhythm may promote broad-based restorative neurological health response.

DATE: April 25, 2025 at 11:34AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: New body-fluid biomarker for Parkinson's disease discovered

URL: sciencedaily.com/releases/2025

Researchers have discovered a new biomarker for Parkinson's disease. A misfolded protein facilitates reliable diagnosis even in the early stages of Parkinson's disease in body fluids.

URL: sciencedaily.com/releases/2025

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DATE: April 25, 2025 at 11:34AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: In Down syndrome mice, 40Hz light and sound improve cognition, neurogenesis, connectivity

URL: sciencedaily.com/releases/2025

A new study provides new evidence that sensory stimulation of a gamma-frequency brain rhythm may promote broad-based restorative neurological health response.

URL: sciencedaily.com/releases/2025

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DATE: April 25, 2025 at 11:34AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: AI helps unravel a cause of Alzheimer's disease and identify a therapeutic candidate

URL: sciencedaily.com/releases/2025

A new study found that a gene recently recognized as a biomarker for Alzheimer's disease is actually a cause of it, due to its previously unknown secondary function that triggers a pathway that disrupts how cells in the brain turn genes on and off.

URL: sciencedaily.com/releases/2025

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DATE: April 25, 2025 at 11:34AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Immune cells drive congenital paralysis disease

URL: sciencedaily.com/releases/2025

Patients with spastic paraplegia type 15 develop movement disorders during adolescence that may ultimately require the use of a wheelchair. In the early stages of this rare hereditary disease the brain appears to play a major role by over-activating the immune system, as shown by a recent study.

URL: sciencedaily.com/releases/2025

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DATE: April 25, 2025 at 11:33AM
SOURCE: SCIENCE DAILY MIND-BRAIN FEED

TITLE: Compelling new insights into dynamics of the brain's serotonin system

URL: sciencedaily.com/releases/2025

A new study sheds new light on these big questions, illuminating a general principle of neural processing in a mysterious region of the midbrain that is the very origin of our central serotonin (5-HT) system, a key part of the nervous system involved in a remarkable range of cognitive and behavioral functions.

URL: sciencedaily.com/releases/2025

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DATE: April 25, 2025 at 11:34AM
SOURCE: SCIENCE DAILY PSYCHOLOGY FEED

TITLE: Immune cells drive congenital paralysis disease

URL: sciencedaily.com/releases/2025

Patients with spastic paraplegia type 15 develop movement disorders during adolescence that may ultimately require the use of a wheelchair. In the early stages of this rare hereditary disease the brain appears to play a major role by over-activating the immune system, as shown by a recent study.

URL: sciencedaily.com/releases/2025

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DATE: April 25, 2025 at 11:33AM
SOURCE: SCIENCE DAILY PSYCHOLOGY FEED

TITLE: Compelling new insights into dynamics of the brain's serotonin system

URL: sciencedaily.com/releases/2025

A new study sheds new light on these big questions, illuminating a general principle of neural processing in a mysterious region of the midbrain that is the very origin of our central serotonin (5-HT) system, a key part of the nervous system involved in a remarkable range of cognitive and behavioral functions.

URL: sciencedaily.com/releases/2025

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DATE: April 25, 2025 at 06:00PM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
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TITLE: New study reveals connection between body fat and depression

URL: psypost.org/new-study-reveals-

A large-scale study has found that adults with higher percentages of body fat, especially in the legs, gynoid region, and head, tend to report more symptoms of depression. This connection was most evident among men and those classified as underweight or overweight. The findings, published in the Journal of Affective Disorders, suggest that the distribution of body fat—not just overall body weight—may play a meaningful role in mental health.

While obesity and depression are known to often co-occur, many past studies have relied on body mass index (BMI) to define obesity. But BMI doesn’t distinguish between fat and muscle, nor does it capture where fat is located in the body. This limitation has led to mixed results in previous research. The current study aimed to take a closer look by using more precise tools to measure fat percentage in specific areas of the body.

The researchers used data from 10,694 adults who took part in the National Health and Nutrition Examination Survey (NHANES), a nationally representative study conducted in the United States. These participants had completed full-body scans using dual-energy X-ray absorptiometry (DXA), a technology that accurately measures fat, muscle, and bone. The scans allowed the researchers to analyze fat percentage in eight distinct regions: the legs, arms, trunk, head, android (abdominal), gynoid (hips and thighs), subtotal (excluding the head), and total body.

To assess depression, the study used the Patient Health Questionnaire-9 (PHQ-9), a validated self-report measure of depressive symptoms. A score of 10 or higher on the PHQ-9 was used as a cutoff for clinically significant depression. Researchers also collected information about participants’ lifestyle habits, socioeconomic status, medical conditions, and biological markers, which allowed them to adjust their statistical models for many possible confounding factors.

The results showed that people in the highest quartile for total body fat had a significantly higher likelihood of reporting depression compared to those in the lowest quartile. This association remained even after adjusting for a wide range of demographic, behavioral, and health-related variables. Notably, the strongest associations were found for fat located in the legs, gynoid area, and subtotal region. People with higher head fat percentage also showed a modest increase in depression risk.

When the researchers examined differences by sex, they found that the association between body fat and depression was stronger in men than in women. This was especially true for fat in the legs and total body fat. In contrast, the connection was weaker or absent in women, except for some regions. This suggests that the effects of fat distribution on mood may operate differently depending on biological sex.

The researchers also looked at whether the association varied across different BMI categories. Among individuals who were underweight or overweight, higher body fat percentages in several regions were consistently linked with increased depression risk. Interestingly, this pattern was not as clear in participants with a BMI in the normal range. This finding challenges the assumption that normal-weight individuals are at low risk for depression related to fat accumulation and highlights the importance of examining fat distribution rather than relying on weight alone.

The researchers suggest several possible explanations for these patterns. Biologically, excess fat tissue produces inflammatory molecules that may interfere with brain function and mood regulation. Hormones like leptin, which help control hunger and metabolism, can also become dysregulated in people with higher fat percentages, possibly affecting brain systems involved in emotion. Psychosocial factors may also play a role. Individuals with higher body fat, especially in visible areas, might experience greater stigma or body dissatisfaction, both of which can contribute to depression.

This study adds to a growing body of evidence that body composition—and where fat is stored—can affect mental well-being. While BMI has long been the go-to measure in public health and clinical settings, this study shows that it may be too blunt an instrument to capture the nuances of how body fat influences mental health.

Despite its strengths, the study has some limitations. Because it was cross-sectional, it cannot determine whether higher body fat leads to depression or whether depression contributes to changes in body composition. Depression itself can influence eating habits, physical activity, and metabolic processes, which could alter body fat levels over time. The study also relied on a single self-report questionnaire to assess depression, without clinical interviews or additional mental health screenings. Moreover, since the research focused on a United States population, the findings may not apply to other cultural or healthcare settings.

Future research could address these limitations by following participants over time to explore how changes in fat distribution might influence mental health. It would also be useful to examine how interventions that reduce specific types of body fat—through diet, exercise, or other means—might affect depression symptoms, especially in men or in people whose weight falls outside the typical range.

The study, “Association between body fat percentage and depression: A cross-sectional study of NHANES,” was authored by Wenjun Gu, Kunming Bao, Xiaoming Li, Shaohang Xiang, Junhao He, Jinning He, Lixin Ye, and Zhidong Huang.

URL: psypost.org/new-study-reveals-

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PsyPost Psychology News · New study reveals connection between body fat and depressionBy Eric W. Dolan