Japanese Journal of Physiological Psychology and Psychophysiology
Online ISSN : 2185-551X
Print ISSN : 0289-2405
ISSN-L : 0289-2405
Volume 19, Issue 3
Displaying 1-7 of 7 articles from this issue
  • [in Japanese]
    2001 Volume 19 Issue 3 Pages 89-90
    Published: December 31, 2001
    Released on J-STAGE: November 27, 2012
    JOURNAL FREE ACCESS
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  • [in Japanese]
    2001 Volume 19 Issue 3 Pages 91-92
    Published: December 31, 2001
    Released on J-STAGE: November 27, 2012
    JOURNAL FREE ACCESS
    Download PDF (246K)
  • [in Japanese]
    2001 Volume 19 Issue 3 Pages 93-94
    Published: December 31, 2001
    Released on J-STAGE: November 27, 2012
    JOURNAL FREE ACCESS
    Download PDF (336K)
  • 2001 Volume 19 Issue 3 Pages 95-103
    Published: December 31, 2001
    Released on J-STAGE: November 27, 2012
    JOURNAL FREE ACCESS
    Download PDF (1584K)
  • 2001 Volume 19 Issue 3 Pages 105-203
    Published: December 31, 2001
    Released on J-STAGE: November 27, 2012
    JOURNAL FREE ACCESS
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  • Aki AKAMINE, Mitsuro KIDA
    2001 Volume 19 Issue 3 Pages 205-215
    Published: December 31, 2001
    Released on J-STAGE: November 27, 2012
    JOURNAL FREE ACCESS
    This study was designed to examine the effect of negative emotion on reaction times (RTs). RTs and eventrelated brain potentials (ERPs) for emotional pictorial stimuli (“people”) were recorded during discriminative RT tasks. In the Go/Nogo task, participants were required to press a button responding to “people”. In the other, the Stop/Nostop task, participants were instructed to press a button if the present stimulus was not “car”. The latter was purported to eliminate the difference of difficulty in identifying “people” between the negative and the neutral stimuli. A slowdown of RTs for the negative stimuli was demonstrated in both tasks. For the negative stimuli, this slowdown was accompanied by the changes in the latency of the P3 component in the Go/Nogo task, reflecting stimulus evaluation processes, but not in the Stop/Nostop task. P2 and N2 components were affected by the stimulus conditions and/or the task conditions. Moreover, in both tasks, the great increases in P3 amplitudes were elicited by the negative stimuli. However, no correlations between these changes in the ERPs and the slowdown of RTs were detected. These results suggest that the effect of emotion influenced the response activation processes.
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  • Asako HONDA, Hiroaki MASAKI, Katuo YAMAZAKI
    2001 Volume 19 Issue 3 Pages 217-225
    Published: December 31, 2001
    Released on J-STAGE: November 27, 2012
    JOURNAL FREE ACCESS
    We studied the relationship between hemispheric asymmetry, emotion, and aerobic exercise intensity. Nine participants used a bicycle ergometer to exercise for 2 15-minute periods at 2 different exercise intensities : a comfortable self-established pace (CSEP) and 70%VO2 max. CSEP was defined as exercise intensity that the subject subjectively determined to be comfortable. Electroencephalograms (EEG) were monitored prior to exercise and during exercise recovery. To evaluate emotional changes associated with exercise, questionnaires were completed prior to, during, immediately after exercise and during exercise recovery. The α-power spectrum of the frontal EEG was classified as follows : α 1, 8-9.5 Hz; a 2, 9.5-11.5 Hz; and α 3, 11.5-13 Hz, and compared at F3 to F4 for each α-power spectrum. Both exercises at CSEP and 70%VO2max intensity showed decreased anxiety between immediately after exercise and during exercise recovery. Duration, rise, and fall of positive emotion and relaxation differed between exercise intensities. Exercise at CSEP intensity was not hemispherically asymmetric prior to exercise and during recovery. Exercise at 70 %VO2 max was not hemispherically asymmetric prior to exercise, however, the α 2 power of F3 was lower than that of F4 during 60-minute recovery. The left frontal α-power spectrum, specially a 2, at 70%VO2 max would reflect increased positive emotions and decreased anxiety during exercise recovery. These results are discussed based on the approach-withdrawal model of Davidson.
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