Priming — exposure to one stimulus — unconsciously influences responses to later stimuli.

Fish can experience stress and recognize threats.

Fact #2541 · Psychology

Cognitive dissonance causes discomfort when holding conflicting beliefs.

Fact #3043 · Psychology

Nutmeg is a hallucinogen in large doses.

Fact #3419 · Psychology

Overconfidence bias is the most robust finding in judgment psychology — people routinely overestimate accuracy.

Fact #6320 · Psychology

Chronic stress physically alters brain structure — shrinking the prefrontal cortex and enlarging the amygdala.

Fact #6667 · Psychology

Confirmation bias causes people to favor information that supports their existing beliefs.

Fact #945 · Psychology

Humans have a negativity bias — negative events have a stronger psychological impact than equally positive ones.

Fact #5033 · Psychology

Sleep deprivation after 24 hours produces cognitive impairment equivalent to a blood alcohol level of 0.10%.

Fact #5006 · Psychology