Abstract:
OBJECTIVE:The hyperarousal hypothesis is evaluated while controlling the influence of the quality of sleep in the night preceding the evaluation. METHOD:Eleven primary insomniacs and 11 healthy age matched controls participated to the study. Participants filled in 2 weeks of sleep logs and self-monitored their subjective tension the evening before and the morning after each night. Afterwards, subjects were called in to the Lab for a recording session of the P300 ERP (oddball paradigm) once after a night of bad sleep quality (N-) and once after a night of good sleep quality (N+). RESULTS:The main result of the present study indicated that the P300 amplitude at Fz in insomniacs resulted higher following a N- and lower following a N+ with respect to controls. CONCLUSIONS:This result suggests that cortical hyperarousal in primary insomniacs is not a stable individual characteristic, but is associated with the poor quality of their nocturnal sleep.
journal_name
J Psychosom Resjournal_title
Journal of psychosomatic researchauthors
Devoto A,Violani C,Lucidi F,Lombardo Cdoi
10.1016/s0022-3999(02)00579-2subject
Has Abstractpub_date
2003-01-01 00:00:00pages
3-10issue
1eissn
0022-3999issn
1879-1360pii
S0022399902005792journal_volume
54pub_type
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