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Studies of the blink reflex were undertaken in twelve normal subjects during wakefulness and different sleep stages. The early R1 and the late R2 components of the reflex were analyzed. R1 was present in only one subject during stage I sleep and subsequently disappeared in stage II to IV. In all subjects, R2 was gradually diminished and totally disappeared during stage IV. During the REM stage, R1 was seen in only four-out-of-twelve subjects but all R2 returned. Alterations of R1 and R2 of the blink reflex during different sleep stages suggest that the underlying mechanism includes both supranuclear and infranuclear activities. Our finding strengthens further the notion of dual hyponogenic mechanisms for sleep.
S Erkulvrawatr, and
R G Feldman, and
D S Sax, and
J T Ohr
January 1972,
Electroencephalography and clinical neurophysiology,
S Erkulvrawatr, and
R G Feldman, and
D S Sax, and
J T Ohr
June 1969,
Electroencephalography and clinical neurophysiology,
S Erkulvrawatr, and
R G Feldman, and
D S Sax, and
J T Ohr
January 1976,
Journal of neurology,
S Erkulvrawatr, and
R G Feldman, and
D S Sax, and
J T Ohr
December 1964,
Bollettino della Societa italiana di biologia sperimentale,
S Erkulvrawatr, and
R G Feldman, and
D S Sax, and
J T Ohr
January 1991,
Japanese journal of ophthalmology,
S Erkulvrawatr, and
R G Feldman, and
D S Sax, and
J T Ohr
March 1966,
Archives italiennes de biologie,
S Erkulvrawatr, and
R G Feldman, and
D S Sax, and
J T Ohr
October 1964,
Experientia,
S Erkulvrawatr, and
R G Feldman, and
D S Sax, and
J T Ohr
May 1995,
Sleep,
S Erkulvrawatr, and
R G Feldman, and
D S Sax, and
J T Ohr
July 1971,
Biulleten' eksperimental'noi biologii i meditsiny,
S Erkulvrawatr, and
R G Feldman, and
D S Sax, and
J T Ohr
May 1971,
Experimental brain research,
