PSYB51H3 Lecture Notes - Lecture 8: Milan Cathedral, Basal Ganglia, Prefrontal Cortex
Document Summary
Early vs late selection (pipeline: early selection or early with filter system, late selection: even processes can remain unattended/unconscious, multi-level filtering, perceptual load. Spotlight (search light) model: confined to a coherent region of can move from one point to the. Zoom lens model: attention expands from fixation point, grows to fill whole region, then shrinks to include just cued location attention is space and next: can be combined with spotlight, to change position and size of spotlight. Problems with spotlight and zoom lens models: attention shifts rather instantly. Networks of attentional control (endogenous) attentional cueing involves a parieto-frontal network. Network (dan) directed (endogenous) and responses. with both hemispheres: ventral. Network (van) for unexpected, salient stimuli, circuit breaker. Mainly associated with both hemispheres: limitation of fmri, correlative studies, network kicks in when unexpected event causes shift of attention (circuit breaker analogy) Extinction: parietal lesions either in left or right brain.
