노화가 주파수 패턴 인지에 미치는 영향

서지정보

· 발행기관 : 한국청각언어재활학회
· 수록지 정보 : 청능재활 / 4권 / 1호
· 저자명 : 장현숙, 이지연, 유수연

목차

INTRODUCTION
MATERIALS AND METHODS
RESULTS
REFERENCES

초록

노화와 관련된 많은 연구들은 나이가 증가함에 따라 시간적 처리능력(temporal processing)에 결함이 있다고 보고하고 있다.4)6)7)14)16-20) 특히, 청각정보에 대한 시간적처 리능력에 대한 연구들은 frequency 또는 duration의 패턴인지, duration discrimination,6)7)16) gap detection,9)17-20)
temporal order perception,5) temporally altered speech,6) time-compressed,2)20) backward detection masking4) 등의 패러다임을 사용하여 노인들이 비언어적 또는 언어적 음향 정보의 시간적 처리능력에 명백한 결함이 있음을 증

영어초록

The purpose of present study was to investigate aging effects on frequency pattern recognition in a population in Korean by using pitch pattern tests. Frequency pattern test has been used to measure central auditory function that is sensitive to lesions in either hemisphere or interhemisphere. A wealth of experimental evidence suggests that frequency pattern recognition degrades with aging, and that performance deficits are more severe in verbal than in humming modes of responses (Bellis & Wilber, 2001). Frequency pattern test consists of 60 patterns of three-tone burst in varying patterns of high- (1,122 Hz) and low- (880 Hz) frequency. Thirty items were presented to each ear, with the listener humming or verbally labeling the patterns. Twenty subjects were between the age of 20-29 years and 10 subjects were between the ages of 60-70 years all with normal hearing sensitivities. For both the humming and labeling conditions, mean scores of elderly subjects were significantly lower than those of young subjects. The average scores of young subjects were 99.49% for the right and 99.67% for the left for humming. Scores for labeling were 93.99% for the right and 93.99%
for the left. Elderly subjects scores were 79.67% for the right and 80.66% for the left ear for humming. The scores for labeling were 47.33% for the right and 44.66% for the left. The results for the population in Korea identified a pattern that shows that the pattern recognition abilities are degraded by aging. Performance for linguistic labeling is affected more by aging than humming.

KEY WORDS：Frequency pattern test·Central auditory processing disorders·Aging·Elderly subjects

참고자료

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