PsyPost

PsyPost is a privately-owned news platform that focuses on psychology and neuroscience. It aims to share the newest findings related to human behavior, thought processes, and societal trends. The site features updates on breakthroughs in areas such as psychology, psychiatry, neuroscience, sociology, and other related disciplines.

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Vitamin K deficiency linked to reduced neurogenesis and cognitive decline in mouse model

1 week ago | psypost.org | Vladimir Hedrih

A study on mice found that a low intake of vitamin K reduces its concentration in brain tissue and impairs cognitive functions related to learning and memory. The researchers also observed reduced production of new neurons in the hippocampus and elevated neural inflammation. The findings were published in The Journal of Nutrition. Vitamin K is a fat-soluble vitamin essential for blood clotting. It activates proteins that enable blood to coagulate properly.
New study helps explain rising Trump support among minority voters

1 week ago | psypost.org | Eric W. Dolan

People who support strong, rule-breaking political leaders are often assumed to be exclusively aligned with the political right. But a new study published in Psychological Science challenges that assumption by revealing that ethnic minorities, regardless of political affiliation, tend to favor strong leaders more than left-leaning Whites. This preference was linked to levels of generalized trust, with groups expressing lower trust in others more likely to support authoritative leadership.
Poor sleep can bring out the 'dark side' of personality at work, study finds

1 week ago | psypost.org | Eric W. Dolan

New research highlights a link between how well employees sleep and the expression of darker personality traits in the workplace. The study, published in the Journal of Organizational Behavior, found that on days when workers reported poorer sleep, they were more likely to show higher levels of narcissism, Machiavellianism, and psychopathy.
Encountering romantic temptation nudges men and women toward different types of purchases

1 week ago | psypost.org | Eric W. Dolan

When people in relationships are faced with romantic temptation from someone other than their partner, it can trigger a subtle shift in their spending habits. A new study published in Current Psychology found that men in this situation tend to favor experiences—like going to concerts or dining out—while women are more likely to choose tangible goods such as electronics or home decor.
Biomarkers in spinal fluid may flag frontotemporal dementia before symptoms emerge

1 week ago | psypost.org | Eric W. Dolan

A new study has revealed a set of proteins in the cerebrospinal fluid that could help identify frontotemporal dementia (FTD) before symptoms appear and track its progression. The findings, published in Nature Aging, come from scientists who analyzed over 4,000 proteins in people with inherited forms of FTD. The research points to disrupted gene expression and damaged brain connections as key features of the disease, offering potential new targets for diagnosis and treatment.
Robot-assisted therapy improves communication in autistic children

1 week ago | psypost.org | Vladimir Hedrih

A study of children with autism spectrum disorder found that a therapeutic intervention using robots was effective in improving their social development and participation in social activities. After the intervention, participants showed greater improvement in communication and reciprocal social interaction compared to both a control group and a group that received a comparable intervention delivered by a human therapist. The paper was published in the Journal of Autism and Developmental Disorders.
High caffeine intake linked to greater psychological distress in people with depression

1 week ago | psypost.org | Eric W. Dolan

A new study published in Complex Psychiatry has found that people with a history of depression who consume high amounts of caffeine tend to report higher levels of psychological distress. The researchers also found that certain genetic differences are associated with how much caffeine people drink and how sensitive they are to its effects. While caffeine use was not strongly linked to sleep satisfaction, people who said caffeine interfered with their sleep typically consumed less of it.
Scientists identify delusion-like cognitive biases that predict conspiracy theory belief

1 week ago | psypost.org | Eric W. Dolan

People who believe in conspiracy theories may be more likely to exhibit specific cognitive biases also found in individuals with subclinical delusional thinking, according to a pair of new studies published in Applied Cognitive Psychology. The research found that cognitive tendencies such as jumping to conclusions, emotional reasoning, and anomalous perception were significantly associated with both general and specific conspiracy beliefs.
Only a specific dose of psilocybin induces lasting antidepressant-like effects, study suggests

1 week ago | psypost.org | Eric W. Dolan

A new study published in Progress in Neuropsychopharmacology & Biological Psychiatry has found that a single moderate dose of psilocybin produces rapid and lasting antidepressant-like effects in rats, without the unwanted side effects seen at higher doses. The researchers showed that only an intermediate dose improved mood-related behaviors and social interaction while avoiding changes in body temperature, locomotion, and weight gain.
Too much ChatGPT? Study ties AI reliance to lower grades and motivation

1 week ago | psypost.org | Eric W. Dolan

A study published in the journal Education and Information Technologies finds that students who are more conscientious tend to use generative AI tools like ChatGPT less frequently, and that using such tools for academic tasks is associated with lower self-efficacy, worse academic performance, and greater feelings of helplessness. The findings highlight the psychological dynamics behind AI adoption and raise questions about how it may shape students’ learning and motivation.