A 2026 iScience study found that both humans and rats could report whether their own 2-second timing responses were small-error or large-error trials, but rats were more accurate on test choices: human accuracy was 55%-57%, rat accuracy was 65%-67%, and the species gap remained significant before task-variable matching.1 Research Highlights Both species monitored timing errors: …
A 2026 Human Connectome Project MRI study linked asymmetric anterior cingulate cortex sulcal pattern to lower delay discounting in 390 healthy young adults: asymmetric ACC morphology predicted a higher delay-discounting area under the curve, meaning delayed rewards lost less value.1 The finding is not a diagnostic scan for impulsivity, but it puts an early-formed cortical-folding …
A 2026 ABCD stop-signal fMRI study found that group-level cognitive-control brain signals often failed to describe within-person brain dynamics: across 16 comparisons, between-person and within-person associations diverged, and several reversed direction.1 The practical warning is narrow but sharp: a brain pattern that separates people in a group may be the wrong map for explaining how …
A 2026 EEG study of 106 Army National Guard recruits found that higher negative emotionality predicted poorer Go/No-Go discrimination (β = −.234, 95% CI −.392 to −.076) and lower frontal midline theta (β = −.149, 95% CI −.290 to −.001). The key result was not a vague personality-brain link: frontal midline theta, not occipital alpha, …
In the quest to understand the enigmatic nature of depression, scientists are turning to the intricate patterns of brain activity, seeking clues hidden within the electrical storm of thoughts and emotions. By examining electroencephalography (EEG) microstates—brief, recurring patterns of brain activity—researchers have begun to piece together how depression alters the fundamental dynamics of the brain. …