COGS 101B Lecture Notes - Lecture 10: Donald Broadbent, Action Selection, Sensory Memory
29 Mar 2016
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Document Summary
Endogenous attention is what we use to consciously select certain things in the environment. Given that some salient, exogenous cues capture attention, this was a problem for broadbent"s early selection model. Attention can be divided into many functions o. Focusing: limiting the number of items being processed [channel selection] Perceptual enhancement: increasing the processing of some speciic channel information. Action selection [central executive] o o o o. When attending to a speciic channel (e. g. location, object, stream of speech, etc), we often try to increase the amount of information we can extract in order to make identiications. o. enhancement is often measured by the speed at which you can make an identiication (i. e. reaction time), the accuracy of the identiication, or using signal detection measures (d"). Measure of accuracy that also takes into consideration to when you get it wrong. Each channel is thought to have signal + noise.
