PSYC 212 Lecture Notes - Lecture 3: Stanley Smith Stevens, Lateral Sulcus, Peripheral Nervous System

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Mathieu Roy

Document Summary

Sensitivity [shortcut formula] d"~= hits false alarms. *shortcut formula = drawing diagonal straight lines good approximation but technically incorrect. Ex: d" ~= (cid:1004). 9 [90% hits] 0. 75 [75% false alarms] = 0. 15. Ex: d" ~= (cid:1004). 7(cid:1004) [70% hits] 0. 30 [30% false alarms] = 0. 40. Sensitivity [real formula] d" = z [hits] z [false alarms] *give real smooth curve [z score = mean standard error deviation] Peripheral nervous system pns = nerves in periphery of body. *perception = from interaction of pns & environment. * physical stimulus 1-2-3-4 = bottom-up . Physical stimulus interacts w/ specific receptor located on a peripheral sensory. Neuron & causes neuron to fire stimulus is transduced into a electrical signal ap. Signal reaches cortex & produces a conscious perceptual experience. Cognitive factors ex: expectations/attention will influence how sensations are. & causes neuron to fire stimulus is. Ex: sensory receptor & complex proteins = transducers transform external stimulus to ap.