PMID: 11321623Apr 26, 2001Paper

Independent manipulation of stimulus change and unexpectedness dissociates indices of the orienting response

Psychophysiology
M Niepel

Abstract

Results obtained with the standard repetition-change paradigm of orienting research cannot be attributed unambiguously to either stimulus change or to unexpectedness. By adding announcement conditions, in which participants were told about an impending stimulus change, these two factors were disentangled. In Experiment 1, reaction times (RTs) were longer and ratings of surprise were higher with unannounced than with announced stimulus change. In contrast, larger skin conductance response (SCR) magnitudes occurred following change, irrespective of its congruence with participants' expectations. Experiment 2 replicated the results for SCR magnitude and, furthermore, revealed the same pattern of results for the evoked cardiac response. Surprise ratings again reflected the unexpectedness of stimulus presentations. The dissociation between RT and autonomic measures provides difficulties for resource allocation accounts of the orienting response.

Citations

Aug 3, 2006·Journal of Personality and Social Psychology·Rainer ReisenzeinDenise Matz
Aug 26, 2014·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Tokihiro OgawaNoriyoshi Takasawa
Sep 4, 2008·Psychological Reports·Senqi HuDavid A Jacobs
Dec 15, 2005·Perceptual and Motor Skills·Emese NagyPeter Molnar
Jan 9, 2016·Attention, Perception & Psychophysics·James D RetellRoger W Remington
Apr 8, 2010·Biological Psychology·Sylvia D Kreibig
Nov 28, 2009·Biological Psychology·Sylvia D KreibigKlaus R Scherer
Nov 21, 2017·Topics in Cognitive Science·Luis Macedo, Amílcar Cardoso
Sep 25, 2017·Topics in Cognitive Science·Rainer ReisenzeinAchim Schützwohl

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