Capture by Abrupt Onsets: Now You See It, Now You Don't

old_uid14089
titleCapture by Abrupt Onsets: Now You See It, Now You Don't
start_date2014/06/04
schedule11h-12h
onlineno
location_infosalle 127
summaryCan salient stimuli, such as abrupt onsets, capture attention?  Some researchers find that they do, regardless of the observer’s current goals, whereas others find the opposite.  The present research begins with the observation that different theoretical camps consistently rely on different search dimensions: letter vs. color.  In the present precuing experiments, I directly compared these two approaches using identical stimulus displays, changing only the search dimension.  The results were striking: letter search produced large cue validity effects, whereas color search produced negligible effects. Later experiments demonstrated a key role of search difficulty.   I tested several candidate theoretical explanations for this phenomenon.  The results support a nonstrategic cost of capture account called the search time model.  This research helps to resolve a twenty-year debate about visual distraction and has profound implications for developing a comprehensive model of attention capture.
responsiblesDeroche