Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1991-12-26
pubmed:abstractText
A 53-year-old female with startle disease (major form) was reported. An abnormal startle response was the most prominent clinical feature. Physical examination revealed left lateral gaze palsy and left extensor plantar response. The caloric test evoked no responses bilaterally. Blood examinations including lysozomal enzymes and radiological examinations including MRI of the brain were all normal. A pathological startle reflex was elicited by the tap on the upper lip, causing the marked extension of the head with the elbow, hip, and knee joints slightly flexing. The earliest reflex activity in a surface-EMG study was recorded in the masseter muscle and the reflex then spread down the brain stem and the spinal cord. The duration of the discharge varied from 16 to 30 ms. The onset latencies of these responses from the tap were 11.2 ms, 12.7 ms, 14.5 ms, 25.7 ms, 38.5 ms, and 47.5 ms in the masseter, sternocleidomastoid, posterior-neck, biceps brachii, quadriceps femoris, and tibialis anterior muscle, respectively. An averaged electroencephalogram triggered by the taps showed no abnormal EEG activity preceding the pathological startle response, although a negative peak, which was thought as a normal early component of the trigeminal somatosensory evoked potentials, was followed by the reflex. High amplitude SEPs and long loop reflexes were observed following stimulation of the posterior tibial nerve but not of the median nerve. Blink reflexes and auditory evoked potentials were normal.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0009-918X
pubmed:author
pubmed:issnType
Print
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
641-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
[Electrophysiological studies of a case of startle disease].
pubmed:affiliation
Department of Neurology, School of Medicine, University of Tokyo.
pubmed:publicationType
Journal Article, English Abstract, Review, Case Reports