Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Bert S. Kopell"'
Publikováno v:
Electroencephalography and Clinical Neurophysiology. 54:132-146
Three groups of subjects were tested in experiments in which the late positive complex (LPC) was elicited by 50 msec white noise pips of various intensities. Principal Components Analysis was used to decompose event-related potential wave forms. In t
Publikováno v:
Electroencephalography and Clinical Neurophysiology. 64:424-437
Ten young women were tested with an ERP paradigm that used the words ‘left,’ ‘right,’ ‘LEFT,’ ‘RIGHT’ as stimuli. The stimulus sequence was presented as several separate runs with varying response instructions. Subjects were instructe
Publikováno v:
Electroencephalography and Clinical Neurophysiology. 47:637-647
Ten chronic alcoholics (10+ year alcoholic drinking history) and ten age and sex matched controls were tested on an ERP paradigm which elicited a large P3 component. The N1 and P2 sensory evoked potential components did not differ in amplitude or lat
Publikováno v:
Psychophysiology. 15:466-473
In order to determine the extent to which distraction disrupts performance when attention is divided, the distribution of attention across five auditory input channels was assessed using the N1 component of the human auditory evoked potential. In add
Autor:
Bert S. Kopell, Walton T. Roth, Jared R. Tinklenberg, Charles F. Darley, Margaret J. Rosenbloom
Publikováno v:
Psychopharmacologia. 43:261-266
In a double-blind study, 72 normal male subjects were given either placebo or marihuana containing 20 mg. Delta-9-tetrahydrocannabinol. Stories written to cards selected from the Thematic Apperception Test did not differ on hostile or sexual content
Publikováno v:
The Journal of Nervous and Mental Disease. 165:381-386
Sixteen college-educated male subjects were tested on free-recall lists during intoxication with marijuana extract calibrated to 0.3 mg/kg delta-9-tetrahydrocannabinol and during placebo conditions. On each testing day subjects studied six lists usin
Publikováno v:
Journal of Gerontology. 37:696-704
Event-related brain potentials were collected from 10 young (M = 22 years) and 10 elderly (M = 77 years) women. Stimuli were random sequences of 1000- and 1500-Hz tone pips in a two alternative, forced choice, reaction time task. Trials were sorted a
Autor:
Philip A. Berger, Adolf Pfefferbaum, Jared R. Tinklenberg, Jack D. Barchas, Bert S. Kopell, Choh Hao Li, Glen R. Elliot
Publikováno v:
Psychiatry Research. 1:83-88
Beta-endorphin, morphine, and saline were given intravenously to a single schizophrenic subject on separate occasions in a double-blind design. EEG spectral analyses performed on data collected before and after drug injection demonstrated that β-end
Publikováno v:
Annals of the New York Academy of Sciences. 425:570-577
Subjects react to a random sequence of binary events as if the series were constrained by sequential rules. The reaction to a stimulus on trial n of a sequence is influenced by stimuli presented as far back as trial n 5 , as indicated by both choice
Publikováno v:
Electroencephalography and Clinical Neurophysiology. 47:450-459
Six healthy old and 8 healthy young subjects each received a series of trials in a memory retrieval task devised by Sternberg (1966). On each trial, the subject received a memory set of 1–4 digits and was then shown a test digit. The subject's task