PSYC30018 Lecture Notes - Spring 2018 Lecture 22 - Basal forebrain, White matter, Random sequence
Document Summary
Selective attention cognitive processes that enable organisms to process relevant inputs, thoughts or actions while ignoring irrelevant or distracting ones. Voluntary selective attention top-down, goal-directed influence (endogenous attention: our ability to intentionally attend to something. Involves a dorsal pathway or network includes the intraparietal cortex and superior frontal cortex. Reflexive attention bottom-up and stimulus-driven (exogenous attention: when a sensory event captures our attention. Involves a ventral network largely lateralised to the right hemisphere and includes the tempoparietal cortex and inferior frontal cortex: specialised for detecting behaviourally relevant stimuli (salient stimuli) and acts as a circuit breaker for the dorsal stream. Late selection argument attended and ignore inputs are processes equivalently by the perceptual systems, with the bottleneck occurring at higher levels prior to entering awareness or further attentional processing: voluntary spatial attention. Posner cueing task: measures endogenous attention because the orienting of attention to the cue is driven by the su(cid:271)je(cid:272)t(cid:859)s goals, rather tha(cid:374) its physi(cid:272)al features.
