Cognitive neuroscience — NSF BIO / IOS cross-listed with psychology at the mind-brain interface grain; mechanistic study of perception, attention, memory, language, decision-making, and executive function through the neural substrate. …
cognitive-neuroscience
Signal-detection theory: d' = z(H) − z(F), c = −(z(H)+z(F))/2
Signal-detection theory (SDT; Green & Swets 1966, Macmillan & Creelman 2005) decomposes performance in any yes/no discrimination task…
Mental chronometry: RT(n) = a + b·n; Sternberg slope b ≈ 38 ms/item
Mental chronometry — inferring the temporal structure of mental operations from reaction times — originates with Donders' (1868)…
Working memory: Miller 7±2 chunks; Cowan 4±1; Baddeley-Hitch 4-component
Working memory — the active, limited-capacity store for transiently held information in the service of complex cognition — has a storied…
d'-antisymmetry: d'(H,F) + d'(F,H) = 0; d'(H=F) = 0 (chance)
Sympy-exact witness of the d'-antisymmetry and chance-performance identities using sympy's abstract `Function`. Setup: define z =…
Stroop interference: RT_incong − RT_cong = 150 ms at anchor (RT_cong=600, RT_incong=750)
Sympy-exact witness of the Stroop effect at representative canonical reaction-time anchors. Setup: RT_cong = 600 ms (mean RT for congruent…
Sternberg scanning: RT(n) = 400 + 38n ms; RT(4) − RT(1) = 3·38 = 114 ms
Sympy-exact witness of the Sternberg (1966) linear set-size RT scaling on canonical anchor parameters. Setup: a = 400 ms (non-scanning…