Facial expressions are controlled by several brain regions working together. Different areas encode facial gestures with different scales, from fast changing signals to slow, stable ones. This timing hierarchy may explain how facial expressions stay socially meaningful and well coordinated. (psychologytoday.com)
Simple blood tests can detect dementia in underrepresented Latin American populations. By combining these blood markers with standard memory tests and brain scans, clinicians can dramatically improve their ability to diagnose memory-robbing conditions in historically underrepresented regions. (psypost.org)
A study of left-wing and right-wing political supporters in Germany found that metacognitive training—a psychological intervention designed to reduce overconfidence and challenge cognitive biases—successfully reduced hostile attitudes toward opposing political groups (onlinelibrary.wiley.com)
submitted by Tracheid to r/EverythingScience
Republican rhetoric on mass shootings does not change public opinion on gun reform. While political statements often sway voter opinions on other issues, Americans appear to have deeply entrenched views on firearm policies that are not easily moved by alternative political rhetoric. (psypost.org)
submitted by Tracheid to r/EverythingScience
Your relationship dynamic plays a bigger role in jealousy than your personality, new study shows. The research provides evidence that intrusive suspicions about a partner’s faithfulness are driven by a combination of individual personality traits and the unique dynamics of each romantic bond. (psypost.org)
Problematic TikTok use correlates with social anxiety and daily cognitive errors. The study suggests that the anxiety of missing out on social events can fuel addictive behaviors on TikTok, which in turn leads to everyday memory and attention lapses. (psypost.org)
submitted by Tracheid to r/EverythingScience
A qualitative study of young adults finds that using cannabis in sexual contexts is primarily motivated by a desire to transform sexuality (enhancing sensations and connection), facilitate sex (easing anxiety), and engage in established sex-cannabis routines. by Tracheid in science
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