Circadian Differences in the Dichotic Processing of Voicing

Male and female adult subjects (N = 112) were tested at two times (morning and afternoon) for time-of-day related shifts in linguistic processing on dichotic listening tasks using (1) a divided-attention paradigm for processing digits (0-9) and (2) a focused-attention paradigm for processing consona...

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Veröffentlicht in:International journal of neuroscience 1993, Vol.68 (1-2), p.43-52
Hauptverfasser: Morton, L L, Diubaldo, D
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container_title International journal of neuroscience
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creator Morton, L L
Diubaldo, D
description Male and female adult subjects (N = 112) were tested at two times (morning and afternoon) for time-of-day related shifts in linguistic processing on dichotic listening tasks using (1) a divided-attention paradigm for processing digits (0-9) and (2) a focused-attention paradigm for processing consonant-vowel (CV) combinations which were grouped according to the voiced and unvoiced stop consonants. Time-of-day effects were not evident on digits using the divided-attention paradigm. However, on CVs a predicted two-way interaction for Time-of-Day Voicing-due to superior detection of voiced stimuli in the afternoon-was evident. This effect is consistent with a circadian-linked increase in right hemisphere involvement later in the day. Implications for theory, research and educational applications are discussed
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source MEDLINE; Taylor & Francis:Master (3349 titles); Taylor & Francis Medical Library - CRKN
subjects Adult
Anatomical correlates of behavior
Attention
Behavioral psychophysiology
Biological and medical sciences
Brain - physiology
Circadian Rhythm
circadian rhythms
dichotic listening
Dichotic Listening Tests
Female
Functional Laterality - physiology
Fundamental and applied biological sciences. Psychology
Humans
Male
Middle Aged
neuropsychology
Phonetics
priming effects
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Speech Perception
Time-of-day
Voice
voicing
title Circadian Differences in the Dichotic Processing of Voicing
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