Age-related changes in the use of regular patterns for auditory scene analysis.
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Age-related changes in the use of regular patterns for auditory scene analysis. / Rimmele, Johanna; Schröger, Erich; Bendixen, Alexandra.
in: HEARING RES, Jahrgang 289, Nr. 1-2, 1-2, 2012, S. 98-107.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Age-related changes in the use of regular patterns for auditory scene analysis.
AU - Rimmele, Johanna
AU - Schröger, Erich
AU - Bendixen, Alexandra
PY - 2012
Y1 - 2012
N2 - A recent approach to auditory processing suggests a close relationship of regularity processing in auditory sensory memory (ASM) and stream segregation, such that within-stream regularities can be used to stabilize stream segregation. The present study investigates age-related changes in how regular patterns are used for auditory scene analysis (ASA), when the stream containing the regularity is attended or unattended. In order to accomplish an intensity level deviant detection task, participants had to segregate the task-relevant pure tone sequence from an irrelevant distractor pure tone sequence, which randomly varied in level. In three conditions a simple spectro-temporal regularity ("Isochronous"), a more complex spectro-temporal regularity ("Rhythmic"), or no regularity ("Random") was embedded in either the attended target sequence (Experiment 1), or the unattended distractor sequence (Experiment 2). When the sequence containing the regularity was attended, older participants showed a similar increase of performance to younger adults in the conditions with regular patterns ("Isochronous" and "Rhythmic") compared to the "Random" condition. In contrast, when the sequence containing the regularity was unattended, older adults showed a specific performance decline compared to younger adults in the "Isochronous" condition. Results suggest a link between impaired automatic processing of regularities in ASM, and age-related deficits in the use of regular patterns for ASA.
AB - A recent approach to auditory processing suggests a close relationship of regularity processing in auditory sensory memory (ASM) and stream segregation, such that within-stream regularities can be used to stabilize stream segregation. The present study investigates age-related changes in how regular patterns are used for auditory scene analysis (ASA), when the stream containing the regularity is attended or unattended. In order to accomplish an intensity level deviant detection task, participants had to segregate the task-relevant pure tone sequence from an irrelevant distractor pure tone sequence, which randomly varied in level. In three conditions a simple spectro-temporal regularity ("Isochronous"), a more complex spectro-temporal regularity ("Rhythmic"), or no regularity ("Random") was embedded in either the attended target sequence (Experiment 1), or the unattended distractor sequence (Experiment 2). When the sequence containing the regularity was attended, older participants showed a similar increase of performance to younger adults in the conditions with regular patterns ("Isochronous" and "Rhythmic") compared to the "Random" condition. In contrast, when the sequence containing the regularity was unattended, older adults showed a specific performance decline compared to younger adults in the "Isochronous" condition. Results suggest a link between impaired automatic processing of regularities in ASM, and age-related deficits in the use of regular patterns for ASA.
KW - Adult
KW - Humans
KW - Male
KW - Aged
KW - Female
KW - Middle Aged
KW - Young Adult
KW - Age Factors
KW - Time Factors
KW - Analysis of Variance
KW - Psychoacoustics
KW - Aging
KW - Auditory Perception
KW - Cues
KW - Acoustic Stimulation
KW - Auditory Threshold
KW - Audiometry, Pure-Tone
KW - Noise/adverse effects
KW - Pattern Recognition, Physiological
KW - Perceptual Masking
KW - Time Perception
KW - Adult
KW - Humans
KW - Male
KW - Aged
KW - Female
KW - Middle Aged
KW - Young Adult
KW - Age Factors
KW - Time Factors
KW - Analysis of Variance
KW - Psychoacoustics
KW - Aging
KW - Auditory Perception
KW - Cues
KW - Acoustic Stimulation
KW - Auditory Threshold
KW - Audiometry, Pure-Tone
KW - Noise/adverse effects
KW - Pattern Recognition, Physiological
KW - Perceptual Masking
KW - Time Perception
M3 - SCORING: Journal article
VL - 289
SP - 98
EP - 107
JO - HEARING RES
JF - HEARING RES
SN - 0378-5955
IS - 1-2
M1 - 1-2
ER -