PSY270H1 Lecture Notes - Lecture 2: Content Word, Episodic Memory, Aphasia

• School: UTSG
• Department: Psychology
• Course: PSY270H1
• Professor: Kristie Dukewich

Document Summary

Mind- representation-not dealing with stimuli directly but approximations (no detail is important) Stimulus->on retina representation is upside down-> in visual cortex (simple feature) thus, Single cell recording-> use microelectrodes (thin needle) to measure action potential (firing rate of neuron) -> how it change with stimulus. Neurons in primary visual cortex prefer simple features. Anterior temporal lobe: different stimuli excite neuron differently (more complex, more fire eg. face than environment) Conversion= hierarchical organizations: feature detector-> elements of environment -> prefer shorter, moving, oriented feature, specificity coding : (grandmother cell) particular object-> particular neurons. = economically bad eg. monkey prefers faces not particular face: population coding: particular object ->pattern of firing ( large # of neurons, sparse coding: small # of neurons fire for stimuli. Cerebellum- correct movement (recognize problems in movement) Wilder penfiel electrical stimulation-> vivid ltm report/recall. Localization -> help function different specialization to distribute through brain.