Neuroscience News - AI, Neuroscience, Psychology Research

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Auditory Neuroscience Featured Neuroscience Visual Neuroscience

·December 22, 2025·5 min read

Cues Can Hijack Decision Making in Some People

Some individuals rely heavily on visual and sound cues when making decisions, and this sensitivity can lead to persistent maladaptive choices. When cue–outcome associations shift, these individuals struggle to update their beliefs, continuing to follow outdated signals even when doing so becomes risky.

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Featured Neuroscience Psychology

·December 22, 2025·9 min read

Smiling Faces Trigger Mimicry, and Make Us Trust Them More

People instinctively mimic others’ facial expressions, but new research shows we do this far more with joyful faces than with sadness or anger—and that the intensity of mimicry predicts how much we trust someone. Across three experiments using EMG and behavioral tasks, participants copied smiles more readily and rated smiling individuals as more attractive, confident, and trustworthy.

Featured Neuroscience Psychology

·December 19, 2025·7 min read

Guilt and Shame Shape Behavior Through Separate Brain Pathways

uilt and shame arise from different cognitive triggers and rely on distinct neural systems to guide compensatory behavior. Using a controlled game that manipulated both harm and responsibility, researchers showed that guilt is more strongly driven by the severity of harm caused, while shame is more strongly shaped by how responsible someone feels for that harm. Guilt also more reliably translated into financial compensation, whereas shame required greater cognitive control to influence behavior.

Featured Neuroscience Psychology

·December 19, 2025·4 min read

Emotional Stress Triggers Instant Arousal From Deep Sleep

A new study uncovers a precise brain pathway that rapidly converts emotional stress into sudden wakefulness during NREM sleep. Researchers found that GABAergic neurons in the BNST activate glutamatergic neurons in the DpMe, causing immediate arousal.

Featured Neuroscience Psychology

·December 18, 2025·7 min read

Depression Quietly Damages the Heart Through Stress Circuits

Depression and anxiety may heighten cardiovascular disease risk through chronic stress pathways in the brain and body. In a large analysis of more than 85,000 adults, those with depression or anxiety — especially both — were significantly more likely to experience heart attack, stroke or heart failure.

Featured Neuroscience

·December 17, 2025·6 min read

Music Improvisation Rewires the Brain in Real Time

Creativity is notoriously difficult to study as it unfolds, but musical improvisation offers a rare chance to watch spontaneous idea-generation in action. In a new imaging study, researchers examined how 16 skilled jazz pianists’ brains reorganized while they played a familiar tune from memory, improvised around its melody, or freely improvised over its chord changes.

Neuroscience

·December 17, 2025·6 min read

Dairy Consumption Linked to Lower Dementia Risk

A large 25-year study found that people who ate more high-fat cheese and high-fat cream had a lower risk of developing dementia, though the results only show an association—not proof of protection. Participants who consumed the highest amounts of high-fat cheese had a 13% lower dementia risk overall and a 29% lower risk of vascular dementia.

Featured Neurology Neuroscience

·December 17, 2025·5 min read

Dopamine Acts as a Movement Support System, Not a Speed Controller

Dopamine may not control the force or speed of movements as long believed. Instead, it appears to function as a foundational chemical that enables movement in the first place.

Featured Neurology Neuroscience

·December 16, 2025·5 min read

Social Isolation Directly Speeds Up Cognitive Decline

Social isolation has a direct causal impact on how quickly cognitive function declines in later life, independent of whether someone feels lonely. By analyzing more than 137,000 cognitive tests from over 30,000 older adults, the study found that reduced social contact consistently predicted faster decline across every demographic group.

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Neuroscience

·December 16, 2025·5 min read

fMRI Signals Often Misread Neural Activity

fMRI signals don’t always match the brain’s true activity levels, overturning a core assumption used in tens of thousands of studies. In about 40% of cases, an increased fMRI signal appeared in regions where neural activity was actually reduced, while decreased signals sometimes showed up in areas with heightened activity.

Featured Neuroscience

·December 16, 2025·6 min read

Two Dopamine Neuron Subtypes Process Smell in Different Ways

Closely related dopamine-releasing neurons in the olfactory bulb behave in fundamentally different ways depending on their physical structure. One subtype releases neurotransmitters from dendrites instead of axons—an unusual mechanism that allows the cells to act locally and even self-inhibit.

Featured Neuroscience

·December 16, 2025·9 min read

Why Consciousness Evolved

New work explores why consciousness evolved and what observing birds can teach us about its biological purpose. The findings outline three distinct forms of consciousness—basic arousal, general alertness, and reflexive self-awareness—each providing unique adaptive advantages.

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