Results 241 to 250 of about 28,270 (283)

Contingent Negative Variation Audiometry in Children

International Journal of Audiology, 1984
The aim of the present work was to establish whether contingent negative variation audiometry (CNV-A) is applicable to children. In a group of 23 children aged 5-7 years, only 10 generated clearly recognizable CNV when tested with the method successfully used in adults. When the procedure was modified by prolonging the S1-S2 interval and by introducing
T S, Prevec, K, Ribaric, D, Butinar
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Contingent negative variation in children with anorexia nervosa

Pediatrics International, 1999
Central catecholamines, particularly dopaminergic and noradrenergic systems, have affected the appetitive behavior in patients with anorexia nervosa (AN). The purpose of this study is to distinguish the characteristics of contingent negative variation (CNV) and postimperative negative variation (PINV), which may reflect the level of catecholamine in ...
K, Torigoe, O, Numata, T, Sato, C, Imai, K, Takeuchi, H, Yamazaki, H, Hotta, N, Boku, S, Yazaki, S, Sudo, A, Kuwabara, S, Hasegawa, M, Hiura, H, Ino   +13 more
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The contingent negative variation in an odor labeling paradigm

Psychophysiology, 1995
AbstarctFifteen 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, J M, Turner, D C, Matia, S, Warrenburg   +3 more
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Contingent negative variation in obsessional-compulsive patients

Biological Psychology, 1984
Obsessional-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, 1984
SummaryUsing 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, 1976
Abstract 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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P3 and contingent negative variation in Parkinson's disease

Electroencephalography and Clinical Neurophysiology, 1996
Patients with idiopathic Parkinson's syndrome, most of them in early stages of the disease, and matched healthy controls participated in a continuous performance task while their EEGs were recorded from 15 electrodes. During preparation of movements, a contingent negative variation (CNV) maximal at central and posterior sites was visible.
Pulvermüller, F., Lutzenberger, W., Müller, V. ; https://orcid.org/0000-0002-3716-5445, Mohr, B., Dichgans, J., Birbaumer, N.   +5 more
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Fear conditioning, preparedness, and the contingent negative variation

Psychophysiology, 1995
AbstractPsychophysiological 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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Abnormal contingent negative variation in writer's cramp

Clinical Neurophysiology, 1999
To investigate the physiological abnormality in writer's cramp, a focal dystonia which specifically affects writing.We recorded brain potentials that precede hand and neck movements (contingent negative variation or CNV) in 11 patients and 11 age-matched normal subjects.
T, Hamano, R, Kaji, M, Katayama, T, Kubori, A, Ikeda, H, Shibasaki, J, Kimura   +6 more
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Contingent negative variation and the distraction—arousal hypothesis

Electroencephalography and Clinical Neurophysiology, 1976
Thirty-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, J, Savignano-Bowman, D, Meinbresse   +2 more
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