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Auditory rightward spatial bias varies as a function of age.
Fiia Takio1, Mika Koivisto, Seppo J Laukka
1Department of Psychology, University of Turku, Turku, Finland. fiia.takio@utu.fi
Developmental Neuropsychology
|April 5, 2011
Summary
Auditory spatial perception shows age-related changes, with rightward biases appearing in childhood and old age for both language and non-language sounds. These biases are linked to executive functions.
Area of Science:
- Auditory Neuroscience
- Cognitive Psychology
- Developmental Psychology
Background:
- Auditory spatial perception is crucial for understanding our environment.
- Age-related cognitive changes can impact sensory processing.
- Previous research has explored age effects on hearing but less on spatial perception biases.
Purpose of the Study:
- To investigate age-related alterations in auditory spatial perception.
- To examine how linguistic and non-linguistic stimuli are spatially perceived across the lifespan.
- To identify potential links between auditory spatial biases and executive functions.
Main Methods:
- A cross-sectional study design was employed.
- Participants aged 5 to 79 years were tested.
- Auditory spatial perception of linguistic and non-linguistic stimuli was assessed, including dichotic listening tasks.
Main Results:
- The strength of the rightward perceptual bias in linguistic bilateral (dichotic) stimulus conditions varied with age.
- Rightward spatial biases were observed in both linguistic and non-linguistic conditions during childhood and old age.
- These biases were not exclusive to language processing.
Conclusions:
- Auditory rightward spatial biases are not language-specific.
- These biases appear to be influenced by the developmental trajectory and decline of executive functions.
- Age significantly modulates auditory spatial perception, particularly in younger and older individuals.
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