SHOJI KAKIGI
Biographic Data
| ID | 8863375 |
|---|---|
| NAME | SHOJI KAKIGI |
| GIVEN NAMES | SHOJI |
| FAMILY NAME | KAKIGI |
| SIGNATURE | KAKIGI S |
| AFFILIATIONS | Hiroshima Shudo University |
| VERIFIED | No |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 10 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1964 |
| LATEST PUBLICATION YEAR | 1985 |
| H-INDEX | 0 |
Changes in contingent negative variation (CNV) as a function of paired associate learning
The present study was designed to investigate the effect of paired associate learning upon contingent negative variation (CNV). A total of 14 subjects were given paired associate learning items in a discriminative reaction time paradigm. The results obtained showed that as the frequency of correct responding increased the amplitude of CNV significantly increased and CNV resolution time and reaction time significantly decreased. The co-variation o…
Factors Affecting the Resolution of Contingent Negative Variation (Cnv)
The present experiment was designed to investigate the factors affecting the resolution of the contingent negative variation (CNV). In the first session, 11 subjects were tested in a standard CNV paradigm. These subjects were then tested in a probability learning paradigm in which a red or green feedback light informed the subjects whether their choice of response was correct or incorrect. The feedback stimuli were presented.75, 1, and 1.5 sec af…
Slowly Changing Potential Modified by Controlled Respiratory Cycle
The present study was designed to investigate the effect of respiration upon slowly changing potential (SCP) using controlled respiratory cycles. EEG and respiration were monitored under 3 different respiration conditions, 7.5, 15, and 30 cycles per min. The results indicated that SCP amplitude decreased as a function of respiration rate. Cross-correlation analysis also showed that SCP variation is correlated with respiration phase. Considering t…
Changes of Contingent Negative Variation (Cnv), Visual Evoked Response, and Reaction Time During Repeated Trials in Simple Reaction Time Task
The purpose of the present study was to understand both the behavioral (reaction time) and physiological (contingent negative variation and visual evoked response) bases of habituation using a simple reaction time paradigm. Each of 16 adult Ss was given a total of 200 trials with a 1000 msec S1-S2 interval. The results showed that the amplitude of contingent negative variation decreased and reaction time increased over the trial blocks. The visua…
Effects of Horizontal and Vertical Eye Movements and Eye Blink Upon Human Visual Evoked Responses
The effects of horizontal and vertical eye movements upon human visual evoked responses were investigated in Experiments 1 and 2. Results showed that both horizontal and vertical eye movements have no effect upon the averaged evoked response. The effects of eye blink were examined in Experiment 3.Eye blink increased Amplitudes C (P2-N2) and D (N2-P3) of the averaged evoked response, but had little effects on Amplitudes A (N1-P1) and B (P1-N2)
Effects of Reaction Time Task Upon Human Visual Evoked Response Under Conditions of Fixed and Variable Foreperiods
In order to evaluate the effect of attention upon human visual evoked response, reaction time task and no reaction time task were combined with fixed vs. variable interstimulus intervals in a 2 by 2 factorial design. In Experiment 1 a flashing light 8cm×8cm square was presented 30 times to 8 adultSs. The averaged evoked response did not vary with any of the factors. In Experiment 2 a smaller flashing light 4cm×4cm square was presented 30 times to…
Effects of Stimulus Rotation, Shape, and Visual Angle Upon Human Visual Evoked Response
The effects of stimulus size, rotation, and shape upon the averaged evoked response were investigated in Experiment 1 and 2. The evoked response (P1-N1; P2-N2; N2-P3) increased as a function of stimulus size in both experiments, while no effect of rotation was found. The later evoked response components (P2-N2; N2-P3) to the large square and to the triangle were different in Experiment 2. The effect of visual angle upon the evoked response was in…
Psychophysiological Correlates of Reaction Time Under Conditions of Fixed and Variable Foreperiods
The present experiment was designed to test the effects of interstimulus intervals between the response stimuli upon reaction time (RT) under the conditions of two fixed (10 sec and 20 sec) and two variable (5, 7.5, 10, 12.5, and 15 sec; 10, 15, 20, 25, and 30 sec) intervals of eliminating the physical preparatory stimulus, and to monitor heart rate (HR) for analyzing the relationship between RT and HR. The results obtained showed that the 10 sec…
Human Visual Evoked Response as a Function of Stimulus Size and Density of Patterned Stimulus
Human visual evoked response was investigated as a function of stimulus size of diffuse light (Experiment 1) and density of patterned light (Experiment 2). The effect of rotation of the patterned light was also investigated (Experiment 2). The results obtained in Experiment 1 indicated that the mean amplitudes of the evoked response components (Amplitude A, B, and D) significantly increased and the mean latencies of the evoked response components…
Classical Conditioning of Human Pupillary Constriction
The pupillary conditioning of human Ss was studied as a function of CS-UCS interval (Exp. I) and CS intensity (Exp. II). With a CS-UCS interval of 0.5 sec the conditioned reflex occured very little, and with an interval of 6 sec, considerable occurrence of conditioned reflex was observed. The conditioned reflex, however, occurred more frequently on the early period of conditioning, and gradually diminished in the latter half. The results of Exp. …
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Classical Conditioning of Human Pupillary Constriction
The pupillary conditioning of human Ss was studied as a function of CS-UCS interval (Exp. I) and CS intensity (Exp. II). With a CS-UCS interval of 0.5 sec the conditioned reflex occured very little, and with an interval of 6 sec, considerable occurrence of conditioned reflex was observed. The conditioned reflex, however, occurred more frequently on the early period of conditioning, and gradually diminished in the latter half. The results of Exp. …
Effects of Stimulus Rotation, Shape, and Visual Angle Upon Human Visual Evoked Response
The effects of stimulus size, rotation, and shape upon the averaged evoked response were investigated in Experiment 1 and 2. The evoked response (P1-N1; P2-N2; N2-P3) increased as a function of stimulus size in both experiments, while no effect of rotation was found. The later evoked response components (P2-N2; N2-P3) to the large square and to the triangle were different in Experiment 2. The effect of visual angle upon the evoked response was in…
Psychophysiological Correlates of Reaction Time Under Conditions of Fixed and Variable Foreperiods
The present experiment was designed to test the effects of interstimulus intervals between the response stimuli upon reaction time (RT) under the conditions of two fixed (10 sec and 20 sec) and two variable (5, 7.5, 10, 12.5, and 15 sec; 10, 15, 20, 25, and 30 sec) intervals of eliminating the physical preparatory stimulus, and to monitor heart rate (HR) for analyzing the relationship between RT and HR. The results obtained showed that the 10 sec…
Human Visual Evoked Response as a Function of Stimulus Size and Density of Patterned Stimulus
Human visual evoked response was investigated as a function of stimulus size of diffuse light (Experiment 1) and density of patterned light (Experiment 2). The effect of rotation of the patterned light was also investigated (Experiment 2). The results obtained in Experiment 1 indicated that the mean amplitudes of the evoked response components (Amplitude A, B, and D) significantly increased and the mean latencies of the evoked response components…
Effects of Reaction Time Task Upon Human Visual Evoked Response Under Conditions of Fixed and Variable Foreperiods
In order to evaluate the effect of attention upon human visual evoked response, reaction time task and no reaction time task were combined with fixed vs. variable interstimulus intervals in a 2 by 2 factorial design. In Experiment 1 a flashing light 8cm×8cm square was presented 30 times to 8 adultSs. The averaged evoked response did not vary with any of the factors. In Experiment 2 a smaller flashing light 4cm×4cm square was presented 30 times to…
Effects of Horizontal and Vertical Eye Movements and Eye Blink Upon Human Visual Evoked Responses
The effects of horizontal and vertical eye movements upon human visual evoked responses were investigated in Experiments 1 and 2. Results showed that both horizontal and vertical eye movements have no effect upon the averaged evoked response. The effects of eye blink were examined in Experiment 3.Eye blink increased Amplitudes C (P2-N2) and D (N2-P3) of the averaged evoked response, but had little effects on Amplitudes A (N1-P1) and B (P1-N2)
Changes of Contingent Negative Variation (Cnv), Visual Evoked Response, and Reaction Time During Repeated Trials in Simple Reaction Time Task
The purpose of the present study was to understand both the behavioral (reaction time) and physiological (contingent negative variation and visual evoked response) bases of habituation using a simple reaction time paradigm. Each of 16 adult Ss was given a total of 200 trials with a 1000 msec S1-S2 interval. The results showed that the amplitude of contingent negative variation decreased and reaction time increased over the trial blocks. The visua…
Slowly Changing Potential Modified by Controlled Respiratory Cycle
The present study was designed to investigate the effect of respiration upon slowly changing potential (SCP) using controlled respiratory cycles. EEG and respiration were monitored under 3 different respiration conditions, 7.5, 15, and 30 cycles per min. The results indicated that SCP amplitude decreased as a function of respiration rate. Cross-correlation analysis also showed that SCP variation is correlated with respiration phase. Considering t…
Factors Affecting the Resolution of Contingent Negative Variation (Cnv)
The present experiment was designed to investigate the factors affecting the resolution of the contingent negative variation (CNV). In the first session, 11 subjects were tested in a standard CNV paradigm. These subjects were then tested in a probability learning paradigm in which a red or green feedback light informed the subjects whether their choice of response was correct or incorrect. The feedback stimuli were presented.75, 1, and 1.5 sec af…
Changes in contingent negative variation (CNV) as a function of paired associate learning
The present study was designed to investigate the effect of paired associate learning upon contingent negative variation (CNV). A total of 14 subjects were given paired associate learning items in a discriminative reaction time paradigm. The results obtained showed that as the frequency of correct responding increased the amplitude of CNV significantly increased and CNV resolution time and reaction time significantly decreased. The co-variation o…
Neuroscience (10 works) · Psychology (10 works) · Medicine (9 works) · Audiology (8 works) · Cognitive psychology (6 works) · Physics (5 works) · Stimulus (psychology) (5 works) · Contingent negative variation (4 works) · Electroencephalography (4 works) · Mathematics (4 works)