1998 Fiscal Year Final Research Report Summary
Development of HR monitoring system and its application to evaluation of responses in persons with profound brain dysfunction.
| Project/Area Number |
09410031
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
教育・社会系心理学
|
|---|
| Research Institution | Kanazawa University |
|---|
Principal Investigator |
KATAGIRI Kazuo Kanazawa University Fac.of Education Professor, 教育学部, 教授 (00004119)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KOIKE Toshihide Tokyo Gakugei University Fac.of Education Assoc.Professor, 教育学部, 助教授 (60251568)
OOI Manabu Kanazawa University Fac.of Education Professor, 教育学部, 教授 (70116911)
|
|---|
| Project Period (FY) |
1997 – 1998
|
| Keywords | persons with profound brain dysfunction / attention process / HR responses and RSA / monitoring system |
|---|
| Research Abstract |
Persons with profound brain dysfunction are quite restricted with their behavioral responses. Psychophysiological indices are useful for assessments of their attention process and cognitive properties. The purpose of this study was to development a heart rate (HR) monitoring system, and to evaluate HR responses in persons with profound brain dysfunction.
Two aspects of HR responses relate to level of attention. The first aspect concerns phasic HR changes during attention demanding situation. The second aspect is respiratory sinus arrhythmia(RSA). This aspect relates to the sustained or tonic-focussed attention.
In order to use these HR indices for evaluating attention process, real time detection for HR responses is needed. In the present study, a system was developed for telemetry of ECGs and detection of HR responses. A system of transmitter amplified ECGs and generated pulses with duration which was equal to an interval between R-wave and R-wave of ECGs through the electromagnetic induction. A receiver received pulses and conveyed information of the occurrence of R-wave to a personal computer. A printer-port was used as an interface between a receiver and a computer. The computer received an event mark and displayed change of heart rates in relation to the onset of an event mark. In regard to RSA, successive heart rate of 20 seconds were transformed to an spectrum through the maximum entropy method. Display of an spectrum was renewed after an elapse of 20 seconds.
Through using the system developed in the present study, attention process could be monitored and efficiency of this system was confirmed. Real-time evaluation of HR responses might enable monitoring attention process in persons with profound brain dysfunction. This monitoring system is thought to be helpful in maintaining communication between these persons and there teacher.
|
Research Products
(8 results)
