Results 251 to 260 of about 28,270 (283)

Contingent negative variation enhancement in tinnitus patients

American Journal of Otolaryngology, 1991
Contingent 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, K, Sugimoto, T, Kubo, T, Matsunaga, Y, Nageishi, M, Simokochi   +5 more
openaire   +2 more sources

Exploring the maximum duration of the contingent negative variation

International Journal of Psychophysiology, 2018
While 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, Han-Gue Jo, Marc Wittmann, Stefan Schmidt   +3 more
openaire   +3 more sources

Contingent negative variation in children with orthostatic dysregulation

Pediatrics International, 2001
Abstract Background : Children with orthostatic dysregulation (OD) appear to have hypodynamia, as well as the symptoms described in the OD criteira. Hypodynamia, which is greatly influenced by motivation, volition and concentration, is unexceptionally recognized in their everyday life.
K, Torigoe, O, Numata, Y, Ogawa, U, Kaneko, T, Usuda, M, Imamura, K, Takeuchi, H, Suzuki, H, Endo   +8 more
openaire   +2 more sources

Response variables and magnitude of the contingent negative variation

Electroencephalography and Clinical Neurophysiology, 1970
Abstract When subjects in a fixed fore-period reaction time task are presented with a repetitive stimulus that is terminated by the manual response made to it, the contingent negative variations following the warning stimulus will be of greater magnitude than when a single stimulus, over which the subject has no control, is used. It is suggested that
J F, Peters, J R, Knott, L H, Miller, S I, Cohen, W J, Van Veen   +4 more
openaire   +2 more sources

REM sleep and contingent negative variation development

Electroencephalography and Clinical Neurophysiology, 1975
Three 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
openaire   +2 more sources

Contingent Negative Variation under Competitive Situations

Perceptual and Motor Skills, 2009
Participants 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
openaire   +2 more sources

Contingent Negative Variation During Migraine Attack and Interval: Evidence for Normalization of Slow Cortical Potentials During the Attack

Cephalalgia, 1995
P Kropp, W-D Gerber, W D Gerber
exaly  

Anxiety, Stress, and Contingent Negative Variation Reconsidered

Annals of the New York Academy of Sciences, 1984
P, Glanzmann, W D, Froehlich
openaire   +2 more sources

Is Increased Amplitude of Contingent Negative Variation in Migraine Due to Cortical Hyperactivity or to Reduced Habituation?

Cephalalgia, 1993
P Kropp, Wolf-Dieter Gerber, W D Gerber   +2 more
exaly  

Contingent Negative Variation: Methods and Potential Interest in Headache

Cephalalgia, 1993
Jean Schoenen, M Timsit-Berthier
exaly