Abstract：
:In a previous study we showed that healthy highly hypnotizable subjects, during the suggestion of a moderately unpleasant situation administered in awake conditions, exhibited a sympathetic response greatly attenuated with respect to non-hypnotizable individuals. This was interpreted as a natural protection of hypnotizable subjects against the cardiovascular effects of cognitive stress. Aim of the present study was to investigate whether the hypnotic trait is able to modulate the autonomic and cerebral activities also in specific phobic awake hypnotizable (Highs) and non-hypnotizable (Lows) subjects. Electroencephalogram, electrooculogram, electromiogram of corrugator muscle, electrocardiogram, respirogram and tonic electrodermal activity were recorded during a guided mental imagery of an animal phobic object. Phobic stimulation induced in both groups the rise of heart and respiratory frequency and the lowering of skin resistance. These changes are less pronounced in Highs than in Lows and are sustained by a different modulation of the sympatho-vagal balance. During phobic stimulation both groups exhibited a similar significant increase of EEG gamma relative power. At variance, significant stimulation-related decrements of alpha1, theta1 and theta2 activities were found only in Highs that exhibited similar changes during the control and phobic stimulation. Results suggest that hypnotizability is able to modulate cerebral and autonomic responses also in specific phobic subjects. However, the presence of a specific phobia attenuates the effectiveness of hypnotizability as a protective factor against possible stress-related cardiac illness.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Gemignani A,Sebastiani L,Simoni A,Santarcangelo EL,Ghelarducci Bdoi
10.1016/j.brainresbull.2005.12.003keywords:
subject
Has Abstractpub_date
2006-03-31 00:00:00pages
197-203issue
2eissn
0361-9230issn
1873-2747pii
S0361-9230(05)00499-5journal_volume
69pub_type
杂志文章abstract：:Neurodevelopmental disorders such as autism and schizophrenia involve social interaction problems and poor mentalizing abilities, associated with abnormal regional cerebral activity. Similar problems may be present in aggressive personality disorders and psychopathy. This paper reviews brain imaging data from research...
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pub_type： 传,历史文章,杂志文章,评审
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