Results 221 to 230 of about 8,870 (266)

The acoustic startle reflex in stiff‐man syndrome

Neurology, 1994
We studied the EMG response to loud noise in eight patients with stiff-man syndrome (SMS). Audiogenic muscle jerks originated in the acoustic startle reflex. Patients demonstrated excessive, poorly habituating motor activity predominantly in axial and leg muscles.
J Y, Matsumoto, J N, Caviness, K M, McEvoy   +2 more
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Acoustic Startle Reflex in Rhesus Monkeys: A Review

Reviews in the Neurosciences, 2008
Modulation of the acoustic startle response is a simple and objective indicator of emotionality and attention in rodents and humans. This finding has proven extremely valuable for the analysis of neural systems associated with fear and anxiety. Until recently, there have been few efforts to develop acoustic startle measurement in non-human primates ...
Michael, Davis, Elena A, Antoniadis, David G, Amaral, James T, Winslow   +3 more
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Middle Ear Reflex Activity in the Startle Reaction

Archives of Otolaryngology - Head and Neck Surgery, 1975
By means of extratympanic phonometry, the middle ear muscular reflex activity in the startle reaction was measured in a control series, in patients with otosclerosis and in patients with operation cavaties without a functioning tensor tympani muscle.
O, Greisen, E B, Neergaard
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MORO REFLEX AND STARTLE PATTERN

Archives of Neurology And Psychiatry, 1938
The Moro reflex, reported by Moro 1 in 1918, is a complex response in which the arms are extended at the sides to approximate an arch and then slowly brought together one over the other in front of the body. The legs execute a similar movement. It is found only in very young infants and has usually disappeared by the end of the fourth month.
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Gating and Habituation of the Startle Reflex in Schizophrenic Patients

Archives of General Psychiatry, 1992
Schizophrenic patients exhibit impairments in both sensorimotor gating and habituation in a number of paradigms. Through human and animal model research, these fundamental cognitive deficits have well-described neurobiologic bases and offer insights into the neuroanatomic and neurotransmitter abnormalities that characterize patients with schizophrenic ...
D L, Braff, C, Grillon, M A, Geyer
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Accelerometric startle reflex detector

Biomedical Radioelectronics
Problem statement. The innate reflex of startling in response to a short unexpected sound stimulus (acoustic startle reflex – ASR) is characteristic of both experimental animals and humans. Among the ASR parameters, the amplitude of muscle contraction in response to a strong stimulus and the degree of its suppression by a previous weak stimulus ...
V.O. Molodtsov, D.G. Semenov, V.Yu. Smirnov, S.D. Solnushkin, V.N. Chikhman   +4 more
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Effects of pyrethroids on the acoustic startle reflex in the rat

Toxicology, 1988
The effects of NAK 1901 (Pentafluorbenzyl (1R, cis)-3-(2,2-dichlorovinyl)-2,2-dimethyl-cyclopropane-carboxylate) and cypermethrin ((S,R)-alpha-cyano-3-phenoxybenzyl-2,2-dimethyl (1R, 1S, cis, trans)-3-(2,2-dichlorovinyl) cyclopropane-carboxylate) (RU 24 501) on amplitude and prepulse inhibition of the acoustic startle reflex were studied in male Wistar
T H, Hijzen, R, De Beun, J L, Slangen
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Startle Reflex Habituation in Children with Cerebral Palsy

Perceptual and Motor Skills, 1979
Two groups of children (9 with cerebral palsy and 10 normals, matched for sex and age) participated in a study of the startle reflex. Each child was instructed to press a button as soon as possible after the onset of a visual stimulus on a box on the table at which they were seated.
J, Goldberg, D E, Anderson, S, Wilder
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Emotion in the criminal psychopath: Startle reflex modulation.

Journal of Abnormal Psychology, 1993
Startle-elicited blinks were measured during presentation of affective slides to test hypotheses concerning emotional responding in psychopaths. Subjects were 54 incarcerated sexual offenders divided into nonpsychopathic, psychopathic, and mixed groups based on file and interview data.
C J, Patrick, M M, Bradley, P J, Lang
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Neuroplasticity in the acoustic startle reflex in larval zebrafish

Current Opinion in Neurobiology, 2019
Learning is essential for animal survival under changing environments. Even in its simplest form, learning involves interactions between a handful of neuronal circuits, hundreds of neurons and many thousand synapses. In this review I will focus on habituation - a form of non-associative learning during which organisms decrease their response to ...
openaire   +3 more sources