Emotional processing : integrating neuromagnetic and autonomic markers
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1
Universités de Lille I et II, Laboratoire de Neurosciences Fonctionnelles & Pathologies, CNRS UMR8160, France
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2
Département de Psychologie, Université de Montréal, Centre de Recherche en Neuropsychologie et Cognition (CERNEC), Département de Psychologie, Canada
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3
University of Montreal, Canada
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4
Cuban Neuroscience Center, Cuba
The investigation of the neural basis of emotion processing is now one of the most active research areas in cognitive neuroscience. From this increased interest, researches have shown that emotion is not a single response but rather a group of complex cognitive, physiological and behavioral expressions. However, how these expressions are integrated together remains to be understood. One interesting approach consists to simultaneously record different neurophysiological indices having complementary dynamics. The aim of the present study was to identify concomitant neurocognitive and peripheral physiological variations related to emotional processing. Thus, evoked related magnetic fields (ERF) and skin conductance responses (SCR) were recorded in 20 normal participants (10 females) during the presentation of pleasant, neutral or unpleasant pictures from the International Affective Picture System (IAPS). Pictures differed for valence or arousal and were equated for luminance, color saturation, physical complexity and spatial frequencies. The participant’s task was to look at pictures and to try to experience feelings which could be induced by same pictures. Data were analyzed by means of spatio-temporal principal component analysis (PCA), permutation and co-variation methods. The main result demonstrated co-variations between cognitive evaluation of affective value of pictures and SCR parameters on the one hand and between these parameters and early magnetic fields on the other hand during the processing of emotional pictures. This work demonstrates for the first time specific links between cortical activity as recorded by ERF and SCR, a very wide used autonomic activity considered as a robust marker of somatic impact of central activations. These results will be discussed in light of the role of emotional processes on normal and pathological somatic expressions.
Conference:
10th International Conference on Cognitive Neuroscience, Bodrum, Türkiye, 1 Sep - 5 Sep, 2008.
Presentation Type:
Oral Presentation
Topic:
Symposium 15: Neurocognitive Correlates of Affect
Citation:
Sequeira
H,
D’Hondt
F,
Collignon
O,
Dubarry
A,
Robert
M,
Taisne
M,
Tremblay
J,
Martinez-Montes
E,
Lepore
F and
Lassonde
M
(2008). Emotional processing : integrating neuromagnetic and autonomic markers.
Conference Abstract:
10th International Conference on Cognitive Neuroscience.
doi: 10.3389/conf.neuro.09.2009.01.069
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Received:
01 Dec 2008;
Published Online:
01 Dec 2008.
*
Correspondence:
Henrique Sequeira, Universités de Lille I et II, Laboratoire de Neurosciences Fonctionnelles & Pathologies, CNRS UMR8160, Lille, France, henrique.sequeira@univ-lille.fr