Event-related nociceptive arousal enhances memory consolidation for neutral scenes.
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Event-related nociceptive arousal enhances memory consolidation for neutral scenes. / Schwarze, Ulrike; Bingel, Ulrike; Sommer-Blöchl, Tobias.
in: J NEUROSCI, Jahrgang 32, Nr. 4, 4, 2012, S. 1481-1487.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Event-related nociceptive arousal enhances memory consolidation for neutral scenes.
AU - Schwarze, Ulrike
AU - Bingel, Ulrike
AU - Sommer-Blöchl, Tobias
PY - 2012
Y1 - 2012
N2 - The superior memory for emotional events has been attributed to the beneficial effects of noradrenaline released into the amygdala attributable to arousal. Noradrenaline mediates the effects of different hormones and neurotransmitters, including adrenal stress hormones on consolidation (McGaugh, 2004; Roozendaal et al., 2009). The majority of human fMRI studies of the enhancement of emotional memories contrasted successful encoding of emotionally arousing and neutral stimuli (LaBar and Cabeza, 2006; Murty et al., 2010). Recently, it was highlighted that emotional stimuli elicit not only arousal but also intensify cognitive processes that contribute to the enhanced memory. In particular, the enhanced use of selective attention as well as the greater distinctiveness and semantic relatedness of emotional stimuli influence memory formation (Talmi et al., 2007a). The present study aimed to explore the effects of arousal on memory formation independent of these cognitive factors in an event-related manner. Arousal was induced by the application of a nociceptive stimulus briefly after the presentation of neutral scenes. The results show a purely arousal-driven memory enhancement for the neutral scenes that differs in critical aspects from the superior memory for emotional stimuli. In particular, the enhancement was only evident after consolidation and exclusively based on an increase in item familiarity but not recollection. Moreover, successful memory formation for stimuli followed by arousal was correlated with activity in the parahippocampal cortex but not the amygdala, as is the case for emotional stimuli.
AB - The superior memory for emotional events has been attributed to the beneficial effects of noradrenaline released into the amygdala attributable to arousal. Noradrenaline mediates the effects of different hormones and neurotransmitters, including adrenal stress hormones on consolidation (McGaugh, 2004; Roozendaal et al., 2009). The majority of human fMRI studies of the enhancement of emotional memories contrasted successful encoding of emotionally arousing and neutral stimuli (LaBar and Cabeza, 2006; Murty et al., 2010). Recently, it was highlighted that emotional stimuli elicit not only arousal but also intensify cognitive processes that contribute to the enhanced memory. In particular, the enhanced use of selective attention as well as the greater distinctiveness and semantic relatedness of emotional stimuli influence memory formation (Talmi et al., 2007a). The present study aimed to explore the effects of arousal on memory formation independent of these cognitive factors in an event-related manner. Arousal was induced by the application of a nociceptive stimulus briefly after the presentation of neutral scenes. The results show a purely arousal-driven memory enhancement for the neutral scenes that differs in critical aspects from the superior memory for emotional stimuli. In particular, the enhancement was only evident after consolidation and exclusively based on an increase in item familiarity but not recollection. Moreover, successful memory formation for stimuli followed by arousal was correlated with activity in the parahippocampal cortex but not the amygdala, as is the case for emotional stimuli.
KW - Humans
KW - Male
KW - Female
KW - Magnetic Resonance Imaging/methods
KW - Photic Stimulation/methods
KW - Psychomotor Performance/physiology
KW - Reaction Time/physiology
KW - Emotions/physiology
KW - Memory/physiology
KW - Arousal/physiology
KW - Humans
KW - Male
KW - Female
KW - Magnetic Resonance Imaging/methods
KW - Photic Stimulation/methods
KW - Psychomotor Performance/physiology
KW - Reaction Time/physiology
KW - Emotions/physiology
KW - Memory/physiology
KW - Arousal/physiology
M3 - SCORING: Journal article
VL - 32
SP - 1481
EP - 1487
JO - J NEUROSCI
JF - J NEUROSCI
SN - 0270-6474
IS - 4
M1 - 4
ER -
