시각장애인와 청각장애인에서 진동촉감자극을 이용한 촉감인지능 평가
Assessment of tactile acuity by vibrotactile stimulation in blind and deaf humans
2
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
시각장애인과 청각장애인에서 상실된 감각기능을 대치할 목적으로 촉감제시장치를 이용한다. 이 연구에서는 효과적인 촉감제시장치를 개발하기 위하여 정상인, 시각장애인과 청각장애인의 손가락과 손바닥에서 진동촉감자극기를 이용하여 촉감인지능을 측정하였다. 정상인의 남자와 여자에서 진동촉감자극에 대한 인지능의 차이는 없었으나 다섯 개의 손가락은 손바닥과 비교하여 높은 인지능을 보였다. 정상인과 청각장애인은 60Hz의 진동자극 주파수에서 가장 높은 인지능을 보였으나 시각장애인은 80Hz에서 가장 높은 인지능을 보였다. 또한 두점식별력에서 정상인과 청각장애인은 60Hz, 시각장애인은 80Hz에서 높은 촉감인지능을 보였다. 이상의 연구 결과는 진동촉감자극을 제시할 경우 시각장애인은 80Hz, 청각장애인은 60Hz가 적합함을 시사한다.
Abstract
Tactile sensory substitution is applied to persons with sensory loss of vision or hearing. Tactile acuity of vibrotactile stimulation was assessed in groups of control, blind and deaf to investigate the effective tactile display. Tactile acuity of vibrotactile stimulation in control group did not show any significant difference between male and female, but fingers showed higher acuity than palm. Vibrotactile frequency with 60Hz produced the highest acuity in control and deaf groups, however, the frequency with 80Hz produced the highest acuity in blind group. Also, two-point discrimination test showed the same response in frequency as vibrotactile stimulation. These results suggest that vibrotactile stimulation with 80Hz and 60Hz could be effective for tactile display in blind and deaf, respectively.
참고문헌 (22)
- Cholewiak, R. W., "Vibrotactile localization on the abdomen: effects of place and space", Perception & Psychophysics, 66, pp.970~987 (2004)
- Goldreich, D., "Tactile acuity is enhanced in blindness", Journal Neuroscience, 23, pp.3439~3445 (2003)
- Goldreich, D., "Performance of blind and sighted humans on a tactile grating detection task", Perception & Psychophyssics, 68, pp.1363~1371 (2006)
- Guyton, A. C., "Somatic senses: I. General organization, the tactile and position senses, In Textbook of medical physiology", pp.571~582 (2011), Saunders
- Johansson, R. S., "Tactile sensibility in the human hand: receptive field characteristics of mechanoreceptive units in the glabrous skin area", Journal of Physiology, 281, pp.101~125 (1978)
- Johnson, K. O., "Tactile spatial resolution. I. Two-point discrimination, gap detection, grating resolution, and letter recognition", Journal of Neurophysiology, 46, pp.1177~1192 (1981)
- Jones, L. A., "Tactile displays: guidance for their design and application", Human Factors, 50, pp.90~111 (2008)
- Kaaresoja, T., "Perception of short tactile pulses generated by a vibration motor in a mobile phone", Proceedings of the First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, pp.471~472 (2005)
- Lord, S. R., "Sensori-motor function in older persons with diabetes", Diabetes Medicine, 10, pp.614~618 (1993)
- Morley, J. W., "Perceived pitch of vibrotactile stimuli: effects of vibration amplitude, and implications for vibration frequency coding", Journal of Physiology, 431, pp.403~416 (1990)
- Norrsell, U., "Tactile pathways from the hindlimb to the cerebral cortex in cat", Acta Physiologica Scandinavian, 54, pp.9~17 (1962)
- 박진희, "시각장애우와 청각장애우에서 두점식별력과 격자해상능을 이용한 촉각인지능 평가", 감성과학, 14(4), pp.537~544 (2011), 한국감성과학회
- Pascual-Leone, A., "The metamodal organization of the brain", Progress in Brain Research, 134, pp.427~445 (2001)
- Rauschecker, J. P., "Cortical map plasticity in animals and humans", Progress in Brain Research, 138, pp.73~88 (2002)
- Sadato, N., "Tactile discrimination activates the visual cortex of the recently blind naive to Braille: a functional magnetic resonance imaging study in humans", Neuroscience Letters, 359, pp.49~52 (2004)
- Sadato, N., "Neural networks for Braille reading by the blind", Brain, 121, pp.1213~1229 (1998)
- Sterr, A., "Development of cortical reorganization in the somatosensory cortex of adult Braille students", Electroencephalography Clinical Neurophysiology Supplement, 49, pp.292~298 (1999)
- Tapper, D. N., "Cutaneous Slowly Adapting Mechanoreceptors In The Cat", Science, 143, pp.53~54 (1964)
- Van Boven, R. W., "A psychophysical study of the mechanisms of sensory recovery following nerve injury in humans", Brain, 117(Pt 1), pp.149~167 (1994)
- Verrillo, R. T., "Effective stimulus frequency on subjective vibrotactile magnitude functions", Perception & Psychophysics, 17, pp.91~96 (1975)
- Verrillo, R. T., "Sensation magnitude of vibrotactile stimuli", Perception and Psychophysics, 6, pp.366~372 (1969)
- Sherrick, C. E., "A scale for rate of tactual vibration", Jorunal of the Acoustical Society of America, 78, pp.78~83 (1985)