MovDisordV3, PascalFrancis, Curation, bibRecord, 001701

Abnormal affective startle modulation in individuals with psychogenical movement disorder

Identifieur interne : 001701 ( PascalFrancis/Curation ); précédent : 001700; suivant : 001702

Abnormal affective startle modulation in individuals with psychogenical movement disorder

Auteurs : Paul J. Seignourel [États-Unis] ; Kimberly Miller [États-Unis] ; Ida Kellison [États-Unis] ; Ramon Rodriguez [États-Unis] ; Hubert H. Fernandez [États-Unis] ; Russell M. Bauer [États-Unis] ; Dawn Bowers [États-Unis] ; Michael S. Okun [États-Unis]

Source :

Movement disorders [ 0885-3185 ] ; 2007.

RBID : Pascal:07-0391076

Descripteurs français

Pascal (Inist)
- Système nerveux pathologie, Névrose hystérique, Modulation, Psychophysiologie, Emotion émotivité.

English descriptors

KwdEn :
- Emotion emotionality, Hysterical neurosis, Modulation, Nervous system diseases, Psychophysiology.

Abstract

: Despite recent advances, psychogenic movement disorder (PMD) remains a poorly understood phenomenon. Emotional functioning and responsiveness to stress are believed to play a role in the development of psychogenic symptoms, but empirical studies examining emotional responsiveness in PMD and other conversion disorders are lacking. We investigated modulation of the startle eyeblink reflex by affective pictures in 12 patients with PMD and 12 age- and education-matched control participants. Participants viewed positive, neutral, and negative pictures, while eyeblink responses to white noise bursts were recorded. Control participants showed the expected pattern of startle modulation, with significant potentiation by negative pictures and slight (nonsignificant) inhibition by positive pictures. In the PMD group, however, both positive and negative pictures yielded significantly greater startle responses than neutral pictures. Depression and anxiety symptomatology did not correlate with startle modulation, and the two groups did not differ in self-reported emotional reactions to the pictures. Our findings suggest that individuals with PMD show aversive physiological reactions to positive as well as negative stimuli. Abnormal affective startle modulation may be used to help distinguish between malingering and PMD. Future studies using larger samples are needed to better understand the role of emotions in conversion disorder.

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A11	`05`	`1`		`@1 FERNANDEZ (Hubert H.)`
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C01	`01`		`ENG`	@0 : Despite recent advances, psychogenic movement disorder (PMD) remains a poorly understood phenomenon. Emotional functioning and responsiveness to stress are believed to play a role in the development of psychogenic symptoms, but empirical studies examining emotional responsiveness in PMD and other conversion disorders are lacking. We investigated modulation of the startle eyeblink reflex by affective pictures in 12 patients with PMD and 12 age- and education-matched control participants. Participants viewed positive, neutral, and negative pictures, while eyeblink responses to white noise bursts were recorded. Control participants showed the expected pattern of startle modulation, with significant potentiation by negative pictures and slight (nonsignificant) inhibition by positive pictures. In the PMD group, however, both positive and negative pictures yielded significantly greater startle responses than neutral pictures. Depression and anxiety symptomatology did not correlate with startle modulation, and the two groups did not differ in self-reported emotional reactions to the pictures. Our findings suggest that individuals with PMD show aversive physiological reactions to positive as well as negative stimuli. Abnormal affective startle modulation may be used to help distinguish between malingering and PMD. Future studies using larger samples are needed to better understand the role of emotions in conversion disorder.
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C03	`01`	`X`	`ENG`	`@0 Nervous system diseases @5 01`
C03	`01`	`X`	`SPA`	`@0 Sistema nervioso patología @5 01`
C03	`02`	`X`	`FRE`	`@0 Névrose hystérique @5 02`
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C03	`02`	`X`	`SPA`	`@0 Neurosis histérica @5 02`
C03	`03`	`X`	`FRE`	`@0 Modulation @5 09`
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C03	`03`	`X`	`SPA`	`@0 Modulación @5 09`
C03	`04`	`X`	`FRE`	`@0 Psychophysiologie @5 10`
C03	`04`	`X`	`ENG`	`@0 Psychophysiology @5 10`
C03	`04`	`X`	`SPA`	`@0 Psicofisiología @5 10`
C03	`05`	`X`	`FRE`	`@0 Emotion émotivité @5 11`
C03	`05`	`X`	`ENG`	`@0 Emotion emotionality @5 11`
C03	`05`	`X`	`SPA`	`@0 Emoción emotividad @5 11`
C07	`01`	`X`	`FRE`	`@0 Affect affectivité @5 37`
C07	`01`	`X`	`ENG`	`@0 Affect affectivity @5 37`
C07	`01`	`X`	`SPA`	`@0 Afecto afectividad @5 37`
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<front><div type="abstract" xml:lang="en">: Despite recent advances, psychogenic movement disorder (PMD) remains a poorly understood phenomenon. Emotional functioning and responsiveness to stress are believed to play a role in the development of psychogenic symptoms, but empirical studies examining emotional responsiveness in PMD and other conversion disorders are lacking. We investigated modulation of the startle eyeblink reflex by affective pictures in 12 patients with PMD and 12 age- and education-matched control participants. Participants viewed positive, neutral, and negative pictures, while eyeblink responses to white noise bursts were recorded. Control participants showed the expected pattern of startle modulation, with significant potentiation by negative pictures and slight (nonsignificant) inhibition by positive pictures. In the PMD group, however, both positive and negative pictures yielded significantly greater startle responses than neutral pictures. Depression and anxiety symptomatology did not correlate with startle modulation, and the two groups did not differ in self-reported emotional reactions to the pictures. Our findings suggest that individuals with PMD show aversive physiological reactions to positive as well as negative stimuli. Abnormal affective startle modulation may be used to help distinguish between malingering and PMD. Future studies using larger samples are needed to better understand the role of emotions in conversion disorder.</div>
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<fC01 i1="01" l="ENG"><s0>: Despite recent advances, psychogenic movement disorder (PMD) remains a poorly understood phenomenon. Emotional functioning and responsiveness to stress are believed to play a role in the development of psychogenic symptoms, but empirical studies examining emotional responsiveness in PMD and other conversion disorders are lacking. We investigated modulation of the startle eyeblink reflex by affective pictures in 12 patients with PMD and 12 age- and education-matched control participants. Participants viewed positive, neutral, and negative pictures, while eyeblink responses to white noise bursts were recorded. Control participants showed the expected pattern of startle modulation, with significant potentiation by negative pictures and slight (nonsignificant) inhibition by positive pictures. In the PMD group, however, both positive and negative pictures yielded significantly greater startle responses than neutral pictures. Depression and anxiety symptomatology did not correlate with startle modulation, and the two groups did not differ in self-reported emotional reactions to the pictures. Our findings suggest that individuals with PMD show aversive physiological reactions to positive as well as negative stimuli. Abnormal affective startle modulation may be used to help distinguish between malingering and PMD. Future studies using larger samples are needed to better understand the role of emotions in conversion disorder.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>002B17</s0>
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<fC02 i1="02" i2="X"><s0>002B17A01</s0>
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<fC02 i1="03" i2="X"><s0>002B17A02</s0>
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<s5>01</s5>
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<fC03 i1="01" i2="X" l="ENG"><s0>Nervous system diseases</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Sistema nervioso patología</s0>
<s5>01</s5>
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<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Hysterical neurosis</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Neurosis histérica</s0>
<s5>02</s5>
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<fC03 i1="03" i2="X" l="FRE"><s0>Modulation</s0>
<s5>09</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Modulation</s0>
<s5>09</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Modulación</s0>
<s5>09</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Psychophysiologie</s0>
<s5>10</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Psychophysiology</s0>
<s5>10</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Psicofisiología</s0>
<s5>10</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Emotion émotivité</s0>
<s5>11</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Emotion emotionality</s0>
<s5>11</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Emoción emotividad</s0>
<s5>11</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Affect affectivité</s0>
<s5>37</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Affect affectivity</s0>
<s5>37</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Afecto afectividad</s0>
<s5>37</s5>
</fC07>
<fN21><s1>253</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
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	Movement Disorders (revue)
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Movement Disorders (revue)

Abnormal affective startle modulation in individuals with psychogenical movement disorder

Abnormal affective startle modulation in individuals with psychogenical movement disorder

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