EEG power modifications in obsessive-compulsive disorder during olfactory stimulation

Marco Locatelli; Laura Bellodi; Barbara Grassi; Silvio Scarone

doi:10.1016/0006-3223(95)00172-7

EEG power modifications in obsessive-compulsive disorder during olfactory stimulation

Marco Locatelli, Laura Bellodi, Barbara Grassi, Silvio Scarone

IRCCS Ospedale San Raffaele

Research output: Contribution to journal › Article › peer-review

Abstract

Temporal lobe electroencephalogram (EEG) activity was quantitatively analyzed in obsessive-compulsive disorder (OCD) when subjects are at vest and during a temporal lobe activating procedure, i.e., olfactory stimulation. At rest with eyes closed, delta-1 and alpha-2 power differences were evident in OCD patients as compared with normal controls. During olfactory stimulation, differences between the patient and normal groups were detectable in the slower beta frequencies: Normal subjects showed a power increase, whereas OCD patients showed no modification or a slight decrease, Our results support previous findings of temporal lobe EEG abnormalities in OCD patients with an abnormal pattern of response to a temporal lobe activating procedure.

Original language	English
Pages (from-to)	326-331
Number of pages	6
Journal	Biological Psychiatry
Volume	39
Issue number	5
DOIs	https://doi.org/10.1016/0006-3223(95)00172-7
Publication status	Published - Mar 1 1996

Keywords

Electroencephalogram (EEG)
Obsessive-compulsive disorder
Olfactory stimulation
Spectral analysis
Temporal lobe

ASJC Scopus subject areas

Biological Psychiatry

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10.1016/0006-3223(95)00172-7

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title = "EEG power modifications in obsessive-compulsive disorder during olfactory stimulation",

abstract = "Temporal lobe electroencephalogram (EEG) activity was quantitatively analyzed in obsessive-compulsive disorder (OCD) when subjects are at vest and during a temporal lobe activating procedure, i.e., olfactory stimulation. At rest with eyes closed, delta-1 and alpha-2 power differences were evident in OCD patients as compared with normal controls. During olfactory stimulation, differences between the patient and normal groups were detectable in the slower beta frequencies: Normal subjects showed a power increase, whereas OCD patients showed no modification or a slight decrease, Our results support previous findings of temporal lobe EEG abnormalities in OCD patients with an abnormal pattern of response to a temporal lobe activating procedure.",

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AU - Locatelli, Marco

AU - Bellodi, Laura

AU - Grassi, Barbara

AU - Scarone, Silvio

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Y1 - 1996/3/1

N2 - Temporal lobe electroencephalogram (EEG) activity was quantitatively analyzed in obsessive-compulsive disorder (OCD) when subjects are at vest and during a temporal lobe activating procedure, i.e., olfactory stimulation. At rest with eyes closed, delta-1 and alpha-2 power differences were evident in OCD patients as compared with normal controls. During olfactory stimulation, differences between the patient and normal groups were detectable in the slower beta frequencies: Normal subjects showed a power increase, whereas OCD patients showed no modification or a slight decrease, Our results support previous findings of temporal lobe EEG abnormalities in OCD patients with an abnormal pattern of response to a temporal lobe activating procedure.

AB - Temporal lobe electroencephalogram (EEG) activity was quantitatively analyzed in obsessive-compulsive disorder (OCD) when subjects are at vest and during a temporal lobe activating procedure, i.e., olfactory stimulation. At rest with eyes closed, delta-1 and alpha-2 power differences were evident in OCD patients as compared with normal controls. During olfactory stimulation, differences between the patient and normal groups were detectable in the slower beta frequencies: Normal subjects showed a power increase, whereas OCD patients showed no modification or a slight decrease, Our results support previous findings of temporal lobe EEG abnormalities in OCD patients with an abnormal pattern of response to a temporal lobe activating procedure.

KW - Electroencephalogram (EEG)

KW - Obsessive-compulsive disorder

KW - Olfactory stimulation

KW - Spectral analysis

KW - Temporal lobe

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EEG power modifications in obsessive-compulsive disorder during olfactory stimulation

Abstract

Keywords

ASJC Scopus subject areas

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