PSYC 351A Lecture Notes - Lecture 4: Autism Spectrum, Eye Tracking, Change Blindness
25 May 2016
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Load theory of attention: processing capacity how much info a person can handle at any given moment, perceptual load the dif culty of a given task. High-load (dif cult) tasks use higher amounts of processing capacity. Low-load easy) tasks use lower amounts of processing capacity. Stroop effect: name of the word interferes with the ability to name the ink colour. Cannot avoid paying attention to the meanings of the words. Overt attention: eye movements, attention, and perception. Saccades: rapid movements of the eyes from one place to another. Fixations: short pauses on points of interest. Studied by using an eye tracker: e. g. , studies including children with autism spectrum disorder (asd), tend to avoid faces. Bottom-up determinants of eye movement: stimulus salience: areas that stand out and capture attention. Top-down determinants of eye movements: scene schema: knowledge about what is contained in typical scenes (e. g. , prof in of ce)
