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Cognitive and physiological dissociations in response to emotional pictures in patients with anorexia

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Title: Cognitive and physiological dissociations in response to emotional pictures in patients with anorexia
Authors: Pascal Hot, Julie Latrée, Vincent Dodin, Guillaume Berna, Henrique Sequeira, Sandra Decharles, Jean-Louis Nandrino
Contributors: Université de Lille, CNRS, CHU Lille, Unité de Recherche en Sciences Cognitives et Affectives [URECA], Laboratoire de Psychologie et NeuroCognition [LPNC], Laboratoire de Neurosciences Fonctionnelles et Pathologies [LNFP], Unité de Recherche en Sciences Cognitives et Affectives (URECA), Université de Lille, Sciences Humaines et Sociales-PRES Université Lille Nord de France, Laboratoire de Psychologie et NeuroCognition (LPNC), Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Neurosciences Fonctionnelles et Pathologies (LNFP), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique (CNRS)
Source: Journal of Psychosomatic Research. 72:58-64
Publisher Information: Elsevier BV, 2012.
Publication Year: 2012
Subject Terms: MESH: Psychiatric Status Rating Scales, Anorexia Nervosa, Alexithymia, Anorexia, Emotion, Skin conductance, MESH: Depressive Disorder, Emotions, MESH: Cognition, Autonomic Nervous System, MESH: Autonomic Nervous System, 03 medical and health sciences, Cognition, 0302 clinical medicine, Humans, 0501 psychology and cognitive sciences, Affective Symptoms, 10. No inequality, MESH: Emotions, Psychiatric Status Rating Scales, Depressive Disorder, MESH: Affective Symptoms, MESH: Humans, [SDV.NEU.PC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior, MESH: Arousal, 05 social sciences, Galvanic Skin Response, 16. Peace & justice, 3. Good health, MESH: Galvanic Skin Response, Female, Arousal, MESH: Anorexia Nervosa, MESH: Female
Description: Recent studies suggest that patients with anorexia may express dissociated cognitive and physiological reactivities to emotional stimuli. The present research aimed to compare subjective and autonomic responses to pleasant, unpleasant and neutral scenes during a categorization task and an activation rating task in anorexic (AN), alexithymic (AL), depressed (DEP) and control participants (CONT). The participants first categorized pictures according to their emotional valence, followed by a rating of their activation level, concomitant with the recording of skin conductance responses (SCRs). Main findings showed that the AN patients presented major difficulty in categorizing pictures, particularly neutral ones. Contrary to the AL participants, this difficulty did not induce significant increases of SCR amplitude in the AN patients. In the second task, the AN patients rated the intensity of activation of unpleasant pictures higher than the AL participants and that of pleasant ones higher than the AL and CONT participants. In addition, no significant linear correlation was observed between the intensity of activation ratings and SCR amplitude in the AN, AL or DEP participants contrarily to what was observed for control participants. This lack of relation suggests a non-specific disconnection between physiological and cognitive self-reported responses to emotional stimuli. Our results highlight a specific form of emotional processing in the AN patients distinct from that observed in alexithymia or depression and characterized by a dissociation between cognitive and physiological responses. This kind of disconnection could be associated with emotional regulation processes and may benefit the AN patients by lowering the psychological stress response.
Document Type: Article
File Description: application/octet-stream
Language: English
ISSN: 0022-3999
DOI: 10.1016/j.jpsychores.2011.11.003
Access URL: https://pubmed.ncbi.nlm.nih.gov/22200524
http://www.sciencedirect.com/science/article/pii/S0022399911002765
https://www.sciencedirect.com/science/article/pii/S0022399911002765
https://europepmc.org/article/MED/22200524
https://www.ncbi.nlm.nih.gov/pubmed/22200524
https://hal.archives-ouvertes.fr/hal-00798347
http://hdl.handle.net/20.500.12210/34711
Rights: Elsevier TDM
Accession Number: edsair.doi.dedup.....df65bbddf1f74dd974f1c9e4ad7ebcaf
Database: OpenAIRE
Description
Abstract:Recent studies suggest that patients with anorexia may express dissociated cognitive and physiological reactivities to emotional stimuli. The present research aimed to compare subjective and autonomic responses to pleasant, unpleasant and neutral scenes during a categorization task and an activation rating task in anorexic (AN), alexithymic (AL), depressed (DEP) and control participants (CONT). The participants first categorized pictures according to their emotional valence, followed by a rating of their activation level, concomitant with the recording of skin conductance responses (SCRs). Main findings showed that the AN patients presented major difficulty in categorizing pictures, particularly neutral ones. Contrary to the AL participants, this difficulty did not induce significant increases of SCR amplitude in the AN patients. In the second task, the AN patients rated the intensity of activation of unpleasant pictures higher than the AL participants and that of pleasant ones higher than the AL and CONT participants. In addition, no significant linear correlation was observed between the intensity of activation ratings and SCR amplitude in the AN, AL or DEP participants contrarily to what was observed for control participants. This lack of relation suggests a non-specific disconnection between physiological and cognitive self-reported responses to emotional stimuli. Our results highlight a specific form of emotional processing in the AN patients distinct from that observed in alexithymia or depression and characterized by a dissociation between cognitive and physiological responses. This kind of disconnection could be associated with emotional regulation processes and may benefit the AN patients by lowering the psychological stress response.
ISSN:00223999
DOI:10.1016/j.jpsychores.2011.11.003