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Is the Contingent Negative Variation Contingent on a Motor Response?
Psychophysiology, 1972ABSTRACTTen subjects participated in an experiment in which each was presented with series of paired stimuli separated by 1000 msec. The first stimulus was a click. The second stimulus was either of two visual patterns, concentric circles or a star figure.
Donchin, Emanuel +3 more
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Anxiety, Stress, and the Contingent Negative Variation
Archives of General Psychiatry, 1973Two groups of 26 male college students, one scoring in the upper 10% and one scoring in the lower 10% of the Bendig test of emotionality (original sample, N = 200), were studied under a "low-stress" and a "high-stress" condition. Contingent negative variations (CNV) and galvanic skin responses (GSR) were recorded in a differential reaction time ...
J R, Knott, D A, Irwin
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Contingent Negative Variation and Phobic Disorders
Neuropsychobiology, 2008The authors studied the modifications in contingent negative variation (CNV) in a group of rupophobic subjects. A slide-projected phobogenic or a neutral stimulus was administered 5 s prior to the warning stimulus (S<sub>1</sub>). A marked reduction in CNV amplitude and the appearance of post-imperative negative variation were observed when
P A, Rizzo +3 more
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Conative control of the contingent negative variation
Electroencephalography and Clinical Neurophysiology, 1966Abstract Experiments are described in which experimenter-subjects were able to control the amplitude of the contingent negative variation “at will”. It is urged that any investigations of the psychological correlates of the CNV which make use of “trained observers” should be interpreted with this possible source of bias in mind, and replicated, where
D W, McAdam +3 more
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Lie detection with contingent negative variation
International Journal of Psychophysiology, 2003topographies of contingent negative variation (CNV) were recorded in a paradigm of delayed response with feedback for three kinds of faces: familiar, strange and target. Subjects made responses to the faces according to whether the faces were familiar or not, but also, gave deliberately deceptive responses to target faces to 'cheat the computer ...
Fang, Fang, Yitao, Liu, Zheng, Shen
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Contingent Negative Variation in Childhood Migraine
Cephalalgia, 1993Adult migraineurs without aura have an increased amplitude of the Contingent Negative Variation (CNV) between attacks. Given the potential diagnostic importance of this finding and the difficulties associated with diagnosing migraine in childhood it seemed important to assess CNV in children suffering from this disorder.
E, Besken, R, Pothmann, G, Sartory
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Improved Contingent Negative Variation Audiometry
International Journal of Audiology, 1980In earlier reports we described contingent negative variation audiometry (CNV-A) and explored the accuracy of the method used in clinical conditions. Amplitude was found to be the factor which determines the accuracy of CNV-A. With this study we aimed to increase the amplitude of the CNV so as to improve the accuracy of CNV-A.
T S, Prevec, K, Ribarić
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Reliability and Stability of Contingent Negative Variation
Applied Psychophysiology and Biofeedback, 2000Reliability parameters of a test indicate the stability (and quality) of the test itself. Reliability coefficients greater than 0.70 suggest an attribute as being sufficiently stable over time to be characterized as a trait. Reliability parameters of contingent negative variation (CNV) amplitudes in 27 healthy individuals were determined using a test ...
P, Kropp +4 more
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Contingent Negative Variation Amplitudes
Archives of General Psychiatry, 1972In a double-blind study, the amplitude of the contingent negative variation (CNV) was assessed in 12 normal men given placebo and quantified "social" doses of 1-δ 9 -transtetrahydrocannabinol (THC) and alcohol (ethyl alcohol). Using subjects as their own controls, it was found that THC selectively enhanced the amplitude as compared to placebo while ...
B S, Kopell +2 more
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Motivational determinants of the “contingent negative variation”
Electroencephalography and Clinical Neurophysiology, 1966Abstract 1. 1. The motivational correlates of the vertex negative slow potentials shift seen during reaction time foreperiod, called “the contingent negative variation” or “expectancy wave”, have been studied in two experiments with young adult human males. 2. 2.
D A, Irwin +3 more
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