نتایج جستجو برای: startle response
تعداد نتایج: 978743 فیلتر نتایج به سال:
Tonic Immobility (TI) is a prolonged immobile condition exhibited by a variety of animals when exposed to certain stimuli, and is thought to be associated with a specific state of arousal. In our study, we characterize this state by using the reliably inducible TI state of the grasshopper (Hieroglyphus banian) and by monitoring abdominal pulsations and body movements in response to visual and a...
Prepulse inhibition (PPI), whereby the startle eyeblink response is inhibited by a relatively weak non-startling stimulus preceding the powerful startle eliciting stimulus, is a measure of sensorimotor gating and has been shown to be deficient in schizophrenia patients. There is considerable interest in whether conventional and/or atypical antipsychotic medications can "normalize" PPI deficits ...
Startle is a basic alerting reaction common to all mammals. A rapid reflex not amenable to voluntary control, it was studied extensively by Strauss in 1929 [1], and is the subject of a monograph by Landis and Hunt [2] and a more recent study by Gogan [3]. In the human adult, except for minor interpersonal variations, a stereotyped motor pattern is seen consisting of eye blinking facial grimacin...
The error-related negativity (ERN) is a negative deflection in the event-related potential that is maximal approximately 50 ms after the commission of an error. The ERN is generated in the anterior cingulate cortex, a region of the medial prefrontal cortex implicated in both cognitive and emotional processing. Affective and motivational variables influence the magnitude of the ERN, which sugges...
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