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Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

Reduced object-based perception in the near-hand space.

Jihyun Suh¹, Richard A Abrams²

¹Department of Psychology, Washington University in St. Louis, One Brookings Drive, St. Louis, MO, 63130, USA. jihyun.suh@wustl.edu.

Experimental Brain Research

|August 21, 2015

Summary

Hand proximity alters object-based visual perception. Visual processing near hands is disrupted, affecting how we perceive objects and their locations.

Keywords:

Embodied cognition Near-hand vision Object-based perception Visual attention

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Area of Science:

Cognitive Psychology
Visual Perception
Human-Computer Interaction

Background:

Prior research indicates hand proximity influences visual perception.
The specific impact on object-based perception remains less understood.

Purpose of the Study:

To investigate how hand proximity affects object-based visual perception.
To determine if the space near the hands alters the processing of objects.

Main Methods:

Three experiments were conducted with participants viewing stimuli near and far from their hands.
Participants responded to target stimuli presented within or between rectangular objects.
Reaction times and sensitivity were measured to assess object-based benefits and costs.

Main Results:

A reduced same-object benefit in reaction time was observed for stimuli near the hands.
An increased same-object cost in sensitivity was found for stimuli near the hands.
These findings suggest object-based perception is impaired in the near-hand space.

Conclusions:

Object-based perception is demonstrably disrupted in the near-hand space.
This disruption is consistent with known alterations in visual processing near the hands.
The findings have implications for understanding spatial awareness and visual attention.