Toward an exploration of feeling of strangeness in schizophrenia: Perspectives on acousmatic and everyday listening.
Journal of Abnormal Psychology. 2012-08-01; 121(3): 628-640
DOI: 10.1037/a0026411
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1. J Abnorm Psychol. 2012 Aug;121(3):628-640. doi: 10.1037/a0026411. Epub 2011 Dec
12.
Toward an exploration of feeling of strangeness in schizophrenia: perspectives on
acousmatic and everyday listening.
Micoulaud-Franchi JA(1), Aramaki M(2), Merer A(3), Cermolacce M(1), Ystad S(3),
Kronland-Martinet R(3), Naudin J(1), Vion-Dury J(1).
Author information:
(1)Pole de Psychiatrie « Solaris, » Centre Hospitalier Universitaire de
Sainte-Marguerite.
(2)INCM-CNRS UMR 6193, Institut de Neurosciences Cognitives de la Mediterranee.
(3)LMA-CNRS UPR 7051, Laboratoire de M canique et d’Acoustique.
The aim of this study was to investigate abnormal perceptual experiences in
schizophrenia, in particular the feeling of strangeness, which is commonly found
in patients’ self-reports. The experimental design included auditory complex
stimuli within 2 theoretical frameworks based on « sensory gating deficit » and
« aberrant salience, » inspired from conventional perceptual scales. A specific
sound corpus was designed with environmental (meaningful) and abstract
(meaningless) sounds. The authors compared sound evaluations on 3 perceptual
dimensions (bizarre, familiar, and invasive) and 2 emotional dimensions
(frightening and reassuring) between 20 patients with schizophrenia (SCZ) and 20
control participants (CTL). The perceptual judgment was rated on independent
linear scales for each sound. In addition, the conditioning-testing P50 paradigm
was conducted on 10 SCZ and 10 CTL. Both behavioral and electrophysiological data
confirmed the authors’ expectations according to the 2 previous theoretical
frameworks and showed that abnormal perceptual experiences in SCZ consisted of
perceiving meaningful sounds in a distorted manner and as flooding/inundating but
also in perceiving meaningless sounds as things that become meaningful by
assigning them some significance. In addition, the use of independent scales to
each perceptual dimension highlighted an unexpected ambivalence on familiarity
and bizarreness in SCZ compatible with the explanation of semantic process
impairment. The authors further suggested that this ambivalence might be due to a
conflicting coactivation of 2 types of listening, that is, every day and musical
(or acousmatic) listening.
PsycINFO Database Record (c) 2012 APA, all rights reserved.
DOI: 10.1037/a0026411
PMID: 22149909 [Indexed for MEDLINE]