Attention and Selection 0.0 / 5 ? PsychologyCognitive PsychologyUniversityNone Created by: jmichelCreated on: 12-05-16 14:54 What is attention? process to focus on a particular stimulus while disregarding another stimulus 1 of 17 Why do we need attention? capacity problem; controlling perception 2 of 17 pop-out search target & distractors max. different - quick reaction times/correct responses 3 of 17 conjunction search target & distractors similar in more then one visual property - slow, error prone 4 of 17 neglect (concept) falliere to attend one side of space; damage of partial areas; tested by line bisection; internal representation also impaired 5 of 17 Why neglect? right hemisphere lesion leaves intact left hemisphere = severe neglect of left space 6 of 17 controlled attention processing top-down; slow; effort full; error prone 7 of 17 automatic attention processing bottom-up; effortless; fast; outside of awareness 8 of 17 Selective attention selecting certain stimuli to pay attention to 9 of 17 sustained attention paying attention for a long period of time 10 of 17 Divided attention Focus is on multiple tasks and ideas at once; all but one task must be automatic 11 of 17 stroop effect Demonstration of inference in the reaction time of a task 12 of 17 bottom-up attention sudden change in attention; brain decides whether to keep focus or not 13 of 17 Posner et al. (1984) stages: disengage, shifting, engaged 14 of 17 disengaging stage take attention away from where currently focussing 15 of 17 shifting stage attention change occurs from one stimuli to another 16 of 17 engaged stage focus on new target 17 of 17
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