From an evolutionary perspective, the negativity bias is advantageous because it prioritizes survival threats over potential rewards

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The tube test is a neurobehavioral laboratory assay used in rodents to evaluate social dominance, competitive drive, and persistence

Neurobiological research by Dr. Lindsay Schwarz demonstrates that specific midline thalamic circuits regulate behavioral switches between forward engagement, freezing, and retreat in response to predatory threats

In rodent tube test experiments, prior winning experiences increase the statistical probability of subsequent victories in future bouts

The mammalian hypothalamus contains primitive neural circuits that govern fundamental instinctive drives including mating, feeding, fighting, and fleeing

In Wintering, Katherine May describes toxic positivity as offering upbeat slogans to people who are unhappy rather than acknowledging their suffering

Terry Bradshaw underwent three days of brain testing at Yale University, which showed no evidence of dementia or Alzheimer's disease

Silencing specific prefrontal cortical neural circuits in mice causes previously dominant mice to lose territory battles in the rodent tube test

Stanford neurosurgeon Dr. Josef Parvizi demonstrated that electrical stimulation of the human anterior midcingulate cortex evokes a subjective feeling of an impending challenge combined with a resolve to fight it

Experimental optogenetic or electrical activation of prefrontal cortical circuits in mice transforms previously subordinate mice into persistent winners in the tube test

Terry Bradshaw undertook a 14-day personal challenge to speak exclusively positive statements to everyone he encountered

Neurosurgical patients self-stimulating the midline thalamus in Dr. Robert Heath's studies reported feelings of mild frustration and anger that they experienced as highly arousing and motivating

Acute painful stressors trigger the release of epinephrine in the peripheral nervous system and norepinephrine from the locus coeruleus in the brain

The mammalian prefrontal cortex mediates top-down control over subcortical structures to support conscious strategy execution and competitive persistence

Dilating visual gaze into wide panoramic peripheral vision activates parasympathetic circuits, reduces systemic autonomic arousal, and broadens visual motion perception

Extremely high perceived stakes during motor tasks can cause excess cortical motor unit recruitment, degrading fine motor precision and causing choking under pressure

Katherine May's book Enchantment focuses on recovering from emotional dislocation by reconnecting with everyday awe and wonder

Constricting visual gaze toward a narrow focal target recruits sympathetic nervous system arousal and sharpens focused motor recruitment

Fossil evidence shows that Neanderthals possessed an average cranial capacity equal to or larger than that of modern humans

Homo floresiensis is an extinct species of small-bodied archaic human discovered on the Indonesian island of Flores in 2003

Colossal Biosciences developed an artificial intelligence tool designed to support the de-extinction of extinct species