منابع مشابه
Reflex excitability regulates prepulse inhibition.
Presentation of a weak stimulus, a prepulse, before a reflex-evoking stimulus decreases the amplitude of the reflex response relative to reflex amplitude evoked without a preceding prepulse. For example, presenting a brief tone before a trigeminal blink-eliciting stimulus significantly reduces reflex blink amplitude. A common explanation of such data are that sensory processing of the prepulse ...
متن کاملTargeting reflex: some features and inhibition.
The reaction elicited by a neutral stimulus has been commonly cailed ''orienting response" and many of its peculiarities have been analyzed (Pavlov 1951). Sokolov (1963) indicated that this sevonse is non specific regarding quality anld htensity of the stimulus and that its repetition provokles the extinction of the orienting response. Different components of the respolnse have been pointed out...
متن کاملBuccopalpebral reflex in Parkinson disease and blink reflex study.
OBJECTIVE To define a new primitive reflex named the buccopalpebral reflex (BPR), and to investigate this reflex clinically and neurophysiologically in patients with Parkinson disease. METHODS This prospectively designed study included 17 patients, 9 BPR positive patients, and 8 BPR negative patients in Ankara Research and Training Hospital, Ankara, Turkey, and was carried out between January...
متن کاملThe Grasp Reflex and Moro Reflex in Infants: Hierarchy of Primitive Reflex Responses
The plantar grasp reflex is of great clinical significance, especially in terms of the detection of spasticity. The palmar grasp reflex also has diagnostic significance. This grasp reflex of the hands and feet is mediated by a spinal reflex mechanism, which appears to be under the regulatory control of nonprimary motor areas through the spinal interneurons. This reflex in human infants can be r...
متن کاملMyenteric reflex.
T HE question of an enteric nervous mechanism capable of independent reflex activity has been under investigation since Nothnagel (I) and Luederitz (2) first noted that stimulation of the gut usually produces a contraction orad but not caudad. Luederitz also observed that this response could still be obtained after denervation and, therefore, considered it to be due to a local reflex which late...
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ژورنال
عنوان ژورنال: Physiological Psychology
سال: 1980
ISSN: 0090-5046
DOI: 10.3758/bf03337469