Dissociating electrophysiological correlates of subjective,objective, and correct memory in investigating the emotion-induced recognition bias |
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Affiliation: | 1. Dipartimento di Scienze e Innovazione Tecnologica, Università degli Studi del Piemonte Orientale, Alessandria, Italy;2. CREA Consiglio per la Ricerca in Agricoltura e l''Analisi dell''Economia Agraria, Centro di Ricerca Viticultura ed Enologia (CREA-VE), Asti, Italy;1. Desautels Faculty of Management, McGill University, and Canadian Derivatives Institute, 1001 Sherbrooke Street West, Montréal, QC H3A 1G5, Canada;2. Wake Forest University, 1834 Wake Forest Road, Farrell Hall, Building 60, Winston-Salem, NC 27109, USA;3. Desautels Faculty of Management, McGill University, 1001 Sherbrooke Street West, Montréal, QC H3A 1G5, Canada |
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Abstract: | Performance on tasks requiring discrimination of at least two stimuli can be viewed either from an objective perspective (referring to actual stimulus differences), or from a subjective perspective (corresponding to participant’s responses). Using event-related potentials recorded during an old/new recognition memory test involving emotionally laden and neutral words studied either blockwise or randomly intermixed, we show here how the objective perspective (old versus new items) yields late effects of blockwise emotional item presentation at parietal sites that the subjective perspective fails to find, whereas the subjective perspective (“old” versus “new” responses) is more sensitive to early effects of emotion at anterior sites than the objective perspective. Our results demonstrate the potential advantage of dissociating the subjective and the objective perspective onto task performance (in addition to analyzing trials with correct responses), especially for investigations of illusions and information processing biases, in behavioral and cognitive neuroscience studies. |
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Keywords: | Subjective experience Unconscious recollection Event-related potentials Memory illusion Recognition bias Response bias Decision-making Uncertainty Ambiguity Dissociation |
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