PS260 Lecture Notes - Lecture 1: Cocktail Party, Searchlight
Document Summary
What is attention: arousal/alerting, most primitive form, detect signal, vigilance, demanding concentration, look for patterns in signals, changes in patterns, divided attention, splitting of attention over 2 or more tasks, selection, focusing on one of many inputs. Cocktail party effect: other conversations tuned out, unattended channel can be noticed, e. g. , your name and words high personal significance, need mechanism to boost attended item and dampen unattended items. How do we block processing of inputs we are not interested in? (broadbent, 1958: filter blocks unwanted inputs but allows desired inputs to be further processed. Conscious perception and unconscious perception: there is unconscious perception without attention, moore & egeth (1997, modified paradigm to examine the unconscious influence of standard geometric illusions on line judgements. Inability to consciously report what the patterns were in the inattention trials. (90% of participants selected incorrect patterns) *there is perception without attention but there is only conscious perception with attention.
