Regional Changes in Cerebral Blood Flow During Increased Anxiety in Patients with Anxiety Neurosis

Johanson, Aki; Risberg, Jarl; Silfverskiöld, Peter; Smith, Gudmund J. W.

doi:10.1016/s0166-4115(08)62417-6

Cited by 10 publications

(6 citation statements)

References 10 publications

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“…This is in agreement with the Finding that anxiety is connected with the frontolimbic system [6,10,29,[33][34][35].…”

Section: Discussionsupporting

confidence: 93%

“…Anxiety is generally associated with stimulus-inade quate reports of increased blackness of the picture and changes of the distance between the boy and the threat. Signs of anxiety were scored as slight anxiety, when increased blackness was reported before the last third of the series and moderate to severe anxiety, when blackness increased in the last third of the series, or, when the defense failed with reports such as the threat is approaching the person in picture B [29,30].…”

Section: Scoring Categoriesmentioning

confidence: 99%

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Adaptation in Different Types of Dementia and in Normal Elderly Subjects

Johanson¹,

Gustafson²,

Smith

et al. 1990

Dement Geriatr Cogn Disord

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Forty-two patients with organic dementia and 66 normal elderly subjects were investigated with the Meta-Contrast Technique (MCT) elucidating emotional reactions and defensive strategies. Eleven patients with Alzheimer''s disease (AD), 13 with frontotemporal degeneration (FTD), and 18 with multi-infarct dementia were studied. Defensive strategies were found to be related to the type of brain disorder and its localization. Patients with AD needed significantly longer exposure times for recognition of the emotionally loaded picture configurations in the MCT and showed more often signs of anxiety. Signs of projection and depression were typical for patients with FTD.

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“…This is in agreement with the Finding that anxiety is connected with the frontolimbic system [6,10,29,[33][34][35].…”

Section: Discussionsupporting

confidence: 93%

Section: Scoring Categoriesmentioning

confidence: 99%

Adaptation in Different Types of Dementia and in Normal Elderly Subjects

Johanson¹,

Gustafson²,

Smith

et al. 1990

Dement Geriatr Cogn Disord

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“…In addition to these naturalistic lesions, the infamous psychosurgical lesions of the orbital cortex attenuated the symptoms of chronic anxiety and agitated depression (Flor-Henry, 1977). More recently, measures of cerebral metabolism (positron emission tomography and cerebral blood flow) have shown increased activity in the left orbital region in obsessive–compulsive (Baxter, Phelps, Mazziotta, & Guze, 1987) and anxiety-disorder patients (Johanson, Risberg, Silfverskiold, & Smith, 1986).…”

Section: Emotional Functions Of the Paralimbic Corticesmentioning

confidence: 99%

Neural mechanisms of emotion.

Derryberry¹,

Tucker²

1992

Journal of Consulting and Clinical Psychology

148

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When viewed from an evolutionary perspective, the neural mechanisms of emotion can be seen to be distributed across the brainstem, limbic, paralimbic, and neocortical regions. Descending and ascending connections among these levels are discussed in relation to three types of emotional processes: peripheral effects on patterned bodily responses, central effects on cognitive processing, and subjective emotional experience. Descending influences from the higher to the lower levels allow for an increasing coordination and flexibility of emotional responses, culminating in patterned activity across the peripheral endocrine, autonomic, and motor systems. Ascending influences from lower to higher levels provide preparatory modulation of cortical pathways, thus enabling perceptual and cognitive processing that is adaptive given the current emotional state. The bodily feelings of emotion are a function of cortical interoceptive sensory fields, activated by centrally generated signals or peripheral inputs from the body.

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“…Recent research seems to suggest that both hemispheres are activated by anxiety-arousing stimuli. Experiments with such stimuli given to patients with anxiety-neurosis have shown higher activation in the left fronto-orbital region of the cortex, measured by regional cerebral blood flow (Johanson, Risberg, Silfverskiold and Smith, 1986). On the other hand, there is also evidence to suggest that the right hemisphere has some part in this context.…”

Section: Introductionmentioning

confidence: 99%

Lateralization of defence mechanisms: Differing influences on perception with left and right visual field presentation of anxiety‐arousing stimulation

Carlsson

1989

Eur J Pers

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Forty‐five undergraduate students were randomly divided into two groups and tested with the Meta‐Contrast Technique (MCT), in the left or right visual field (VF). In the MCT, the presentation of a subliminal threatening picture is intended to evoke anxiety and ego mechanisms of defence against it. More signs of repressive plus isolating defences were found in the left hemisphere (LH) group. Signs of projection plus regression tended to be more common in the right hemisphere (RH) group. The total number of anxiety signs in the MCT protocols did not differ between the groups. A clear sex difference was noticed, namely that the female LH and RH groups showed significant lateralization, while the male groups did not differ significantly on a combined defensive score. The data suggest that the left and right hemispheres may show differing perceptual styles, which are described as ego mechanisms of defence in the psychoanalytic literature.

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Regional Changes in Cerebral Blood Flow During Increased Anxiety in Patients with Anxiety Neurosis

Cited by 10 publications

References 10 publications

Adaptation in Different Types of Dementia and in Normal Elderly Subjects

Adaptation in Different Types of Dementia and in Normal Elderly Subjects

Neural mechanisms of emotion.

Lateralization of defence mechanisms: Differing influences on perception with left and right visual field presentation of anxiety‐arousing stimulation

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