Uncertainty during pain anticipation: the adaptive value of preparatory processes
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Uncertainty during pain anticipation: the adaptive value of preparatory processes. / Seidel, Eva-Maria; Pfabigan, Daniela M; Hahn, Andreas; Sladky, Ronald; Grahl, Arvina; Paul, Katharina; Kraus, Christoph; Küblböck, Martin; Kranz, Georg S; Hummer, Allan; Lanzenberger, Rupert; Windischberger, Christian; Lamm, Claus.
in: HUM BRAIN MAPP, Jahrgang 36, Nr. 2, 01.02.2015, S. 744-55.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Uncertainty during pain anticipation: the adaptive value of preparatory processes
AU - Seidel, Eva-Maria
AU - Pfabigan, Daniela M
AU - Hahn, Andreas
AU - Sladky, Ronald
AU - Grahl, Arvina
AU - Paul, Katharina
AU - Kraus, Christoph
AU - Küblböck, Martin
AU - Kranz, Georg S
AU - Hummer, Allan
AU - Lanzenberger, Rupert
AU - Windischberger, Christian
AU - Lamm, Claus
N1 - © 2014 Wiley Periodicals, Inc.
PY - 2015/2/1
Y1 - 2015/2/1
N2 - OBJECTIVES: Anticipatory processes prepare the organism for upcoming experiences. The aim of this study was to investigate neural responses related to anticipation and processing of painful stimuli occurring with different levels of uncertainty.EXPERIMENTAL DESIGN: Twenty-five participants (13 females) took part in an electroencephalography and functional magnetic resonance imaging (fMRI) experiment at separate times. A visual cue announced the occurrence of an electrical painful or nonpainful stimulus, delivered with certainty or uncertainty (50% chance), at some point during the following 15 s.PRINCIPAL OBSERVATIONS: During the first 2 s of the anticipation phase, a strong effect of uncertainty was reflected in a pronounced frontal stimulus-preceding negativity (SPN) and increased fMRI activation in higher visual processing areas. In the last 2 s before stimulus delivery, we observed stimulus-specific preparatory processes indicated by a centroparietal SPN and posterior insula activation that was most pronounced for the certain pain condition. Uncertain anticipation was associated with attentional control processes. During stimulation, the results revealed that unexpected painful stimuli produced the strongest activation in the affective pain processing network and a more pronounced offset-P2.CONCLUSIONS: Our results reflect that during early anticipation uncertainty is strongly associated with affective mechanisms and seems to be a more salient event compared to certain anticipation. During the last 2 s before stimulation, attentional control mechanisms are initiated related to the increased salience of uncertainty. Furthermore, stimulus-specific preparatory mechanisms during certain anticipation also shaped the response to stimulation, underlining the adaptive value of stimulus-targeted preparatory activity which is less likely when facing an uncertain event.
AB - OBJECTIVES: Anticipatory processes prepare the organism for upcoming experiences. The aim of this study was to investigate neural responses related to anticipation and processing of painful stimuli occurring with different levels of uncertainty.EXPERIMENTAL DESIGN: Twenty-five participants (13 females) took part in an electroencephalography and functional magnetic resonance imaging (fMRI) experiment at separate times. A visual cue announced the occurrence of an electrical painful or nonpainful stimulus, delivered with certainty or uncertainty (50% chance), at some point during the following 15 s.PRINCIPAL OBSERVATIONS: During the first 2 s of the anticipation phase, a strong effect of uncertainty was reflected in a pronounced frontal stimulus-preceding negativity (SPN) and increased fMRI activation in higher visual processing areas. In the last 2 s before stimulus delivery, we observed stimulus-specific preparatory processes indicated by a centroparietal SPN and posterior insula activation that was most pronounced for the certain pain condition. Uncertain anticipation was associated with attentional control processes. During stimulation, the results revealed that unexpected painful stimuli produced the strongest activation in the affective pain processing network and a more pronounced offset-P2.CONCLUSIONS: Our results reflect that during early anticipation uncertainty is strongly associated with affective mechanisms and seems to be a more salient event compared to certain anticipation. During the last 2 s before stimulation, attentional control mechanisms are initiated related to the increased salience of uncertainty. Furthermore, stimulus-specific preparatory mechanisms during certain anticipation also shaped the response to stimulation, underlining the adaptive value of stimulus-targeted preparatory activity which is less likely when facing an uncertain event.
U2 - 10.1002/hbm.22661
DO - 10.1002/hbm.22661
M3 - SCORING: Journal article
C2 - 25324216
VL - 36
SP - 744
EP - 755
JO - HUM BRAIN MAPP
JF - HUM BRAIN MAPP
SN - 1065-9471
IS - 2
ER -