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Related Experiment Video

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Block Building Task Identifies Distinct Groups of Left/Right-hand Choice Patterns After Unilateral Peripheral Nerve Injury

Block Building Task Identifies Distinct Groups of Left/Right-hand Choice Patterns After Unilateral Peripheral Nerve Injury

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Hand position biases processing toward task irrelevant flankers.

William S Bush¹, Shaun P Vecera¹

¹Department of Psychology, University of Iowa.

Journal of Experimental Psychology. Human Perception and Performance

|September 22, 2015

Summary

This summary is machine-generated.

Visual processing near hands is conditionally automatic, prioritizing beneficial information. This near-hand bias is absent when only neutral or interfering information is present, demonstrating task-dependent visual attention.

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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

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Published on: July 16, 2015

Area of Science:

Cognitive Psychology
Visual Perception
Human-Computer Interaction

Background:

Recent studies show preferential processing of space near hands.
The automaticity of this near-hand bias remains unclear.
Distinguishing automatic vs. strategic processing is crucial.

Purpose of the Study:

To investigate whether the near-hand bias in visual processing is automatic or strategic.
To determine if task demands influence near-hand processing.
To examine the role of distractor congruency in near-hand visual attention.

Main Methods:

Utilized a flanker task that did not require target search.
Manipulated the location of a critical distractor (near-hand vs. far-hand).
Varied distractor congruency (congruent vs. incongruent) relative to the correct response.

Main Results:

Distractor congruency impacted response times only when distractors were near the hand.
Distractors opposite the hand did not affect response times.
The near-hand effect was contingent on the presence of congruent flankers.

Conclusions:

Preferential processing near the hand is conditionally automatic.
This automaticity is triggered when near-hand locations may hold beneficial information.
The bias is absent when near-hand locations offer only neutral or interfering stimuli.