Reaching measures and feedback effects in auditory peripersonal space.

Area of Science:

• Auditory perception
• Spatial cognition
• Human-computer interaction

Background:

• Auditory peripersonal space (APS) is the space around us that we can interact with through sound.
• Auditory distance perception (ADP) is crucial for navigating and interacting with our environment.
• Understanding how feedback influences these perceptions is key to developing better assistive technologies.

Purpose of the Study:

• To investigate the impact of exploration feedback on the perceived boundary of auditory peripersonal space (APS).
• To examine how feedback affects auditory distance perception (ADP) for sounds within the APS.
• To compare the effects of active exploration versus task repetition on spatial auditory measures.

Main Methods:

• An experiment was conducted with participants estimating sound source reachability and distance.
• Participants reached towards a sound source, receiving exploration feedback in the experimental group.
• Data were analyzed using models to characterize response biases and accuracy in both experimental and control groups.

Main Results:

• Exploration feedback significantly reduced response bias in both APS boundary and ADP.
• Active reaching (feedback) improved the accuracy and consistency of spatial auditory perception.
• Task repetition alone in the control group improved consistency but not accuracy.

Conclusions:

• Active exploration and feedback are crucial for refining auditory spatial awareness.
• This suggests that incorporating haptic or movement-based feedback can enhance auditory perception systems.
• Findings have implications for designing immersive audio experiences and spatial audio interfaces.