Results 211 to 220 of about 29,201 (244)
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Fear conditioning, preparedness, and the contingent negative variation
Psychophysiology, 1995AbstractPsychophysiological research on preparedness has previously focused on autonomic nervous system parameters. The present study used electrocortical indices of fear conditioning. Subjects (n= 10) were tested under fear‐relevant and fear‐irrelevant conditions (1 week apart, order of conditions counterbalanced). Each condition comprised acquisition
M, Regan, R, Howard
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Contingent negative variation and the distraction—arousal hypothesis
Electroencephalography and Clinical Neurophysiology, 1976Thirty-two normal volunteers were tested in three conditions: (1) a constant-foreperiod reaction-time situation consisting of a flash--tone--key-press sequence (control condition); (2) the addition of a short-term memory task consisting of four letters presented within the flash--tone interval with the requirement that they be repeated after key-press ...
J J, Tecce +2 more
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Contingent negative variation enhancement in tinnitus patients
American Journal of Otolaryngology, 1991Contingent negative variations recorded in 20 tinnitus patients with an average hearing level within 40 dB were compared with those from age-matched healthy controls. In addition, negative and positive potentials (N100 and P300), which are presumed to reflect stimulus information processing, were examined.
T, Shiraishi +5 more
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Exploring the maximum duration of the contingent negative variation
International Journal of Psychophysiology, 2018While the contingent negative variation (CNV) has been the subject of extensive research over the last fifty years, the maximum duration during which such cortical negativity can be maintained has, to the best of our knowledge, never been systematically explored. Participants were presented with the classic S1-S2 paradigm task, where a warning stimulus
Jonas Röhricht +3 more
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Contingent negative variation in obsessional-compulsive patients
Biological Psychology, 1984Obsessional-compulsive disorder has been conceptualised in terms of overattention to irrelevant details. The aim of the present study was to investigate whether this feature would be reflected in the 'early' CNV component. Sixteen obsessional patients and matched controls were tested in a motor-set CNV paradigm with a 5 sec interval between S1 and S2 ...
G, Sartory, D, Master
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The Contingent Negative Variation, Personality and Antisocial Behaviour
British Journal of Psychiatry, 1984SummaryUsing a classical click/flash paradigm the contingent negative variation (CNV) was recorded from 60 consecutive male admissions to Broadmoor Hospital. Clinical and psychometric Minnesota Multiphasic Personality Inventory (MMPI) assessments were made independently of the electroencephalography (EEG) data.
R C, Howard, G W, Fenton, P B, Fenwick
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The influence of discriminations on the form of the contingent negative variation
Neuropsychologia, 1976Abstract A CNV paradigm was utilized in which a discriminative response occurred after the imperative stimuli (S2). The response was contingent on information presented in either the ready stimulus (S1) or in S2. The form of the CNV in these situations was analysed and compared with the form of the CNV when no discriminations occurred, other than ...
H, Weinberg, H, Michalewski, R, Koopman
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The contingent negative variation in an odor labeling paradigm
Psychophysiology, 1995AbstarctFifteen subjects participated in an experiment designed to assess the contingent negative variation (CNV) during the labeling of odors and shapes. Odors or shapes were presented (SI) and followed 3 s later by a lexical label (A, B, or C) (S2). In 75% of the trials, the S2 was the correct label for the odor or shape. In the remaining trials, the
T S, Lorig +3 more
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REM sleep and contingent negative variation development
Electroencephalography and Clinical Neurophysiology, 1975Three subjects demonstrated the ability to respond in a contingent negative variation (CNV) paradigm during rapid eye movement (REM) sleep. However, the CNV did not appear as it does in the waking state. This failure of the CNV to develop during REM sleep might be attributed to electrophysiological changes accompanying REM sleep.
J, Salamy, J, Lester, K, Jones
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Contingent Negative Variation under Competitive Situations
Perceptual and Motor Skills, 2009Participants high and low in competitiveness completed a reaction-time task with a warning stimulus designed to elicit contingent negative variation, competing on reaction speed with a visible or invisible opponent to identify what affects contingent negative variation amplitude under more critical competitive situations.
Sayaka, Matsumoto, Haruo, Sakuma
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