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Visual and Auditory Spatial Localization in Younger and Older Adults.

Ying-Zi Xiong^1,2, Douglas A Addleman^1,2,3, Nam Anh Nguyen¹

¹Department of Psychology, University of Minnesota, Minneapolis, MN, United States.

Frontiers in Aging Neuroscience

|May 2, 2022

Summary

This summary is machine-generated.

Typical aging impacts visual and auditory spatial localization, but the integration of these senses remains largely intact in older adults without sensory impairments.

Keywords:

aging auditory perception sensory integration spatial localization visual perception

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Area of Science:

Neuroscience
Gerontology
Sensory Perception

Background:

Spatial localization via vision and hearing is vital for daily activities like navigation and social interaction.
Aging often leads to sensory decline, impacting spatial awareness and potentially affecting quality of life.

Purpose of the Study:

To investigate how typical aging affects visual and auditory spatial localization.
To determine the reliance on vision during sound localization in older adults.
To analyze sensory integration strategies for audiovisual targets in aging.

Main Methods:

A verbal report paradigm was used to assess localization performance.
Fifteen younger adults (mean age 26) and thirteen older adults (mean age 68) participated.
Participants had age-adjusted normal vision and hearing.

Main Results:

Older adults showed higher rates of missing peripheral visual stimuli and mislocalized central stimuli.
Older adults were less precise in localizing sounds from central locations compared to younger adults.
Both groups localized auditory targets better with vision present and demonstrated similar audiovisual integration patterns, optimal centrally and non-optimal peripherally.

Conclusions:

Aging alters auditory and visual localization precision but preserves the fundamental mechanisms of audiovisual integration.
These findings establish a baseline for spatial localization in healthy aging, distinct from pathological sensory loss.