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Related Experiment Video

Updated: Jun 5, 2026

Frame-by-Frame Video Analysis of Idiosyncratic Reach-to-Grasp Movements in Humans

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Published on: January 15, 2018

Nested prospectivity in perception: perceived maximum reaching height reflects anticipated changes in reaching

Jeffrey B Wagman¹, Lydia L Morgan

¹Illinois State University, Normal, IL, USA. jeffreywagman@ilstu.edu

Psychonomic Bulletin & Review

|December 21, 2010

Summary

This summary is machine-generated.

Perception of reaching height is action-scaled, even when nested behaviors alter capabilities. Functionally similar nested actions lead to similar changes in perceived reaching ability, highlighting prospective behavior perception.

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Published on: April 16, 2014

Area of Science:

Cognitive Psychology
Motor Control
Human Movement Science

Background:

Behavior is prospective, involving forward-looking perception of possibilities.
Behaviors are often nested within other behaviors across various scales.
Understanding how nested actions influence action perception is crucial.

Purpose of the Study:

To investigate how nested behaviors affect the perception of maximum vertical reaching height.
To determine if changes in action capabilities due to nested behaviors alter reaching perception.
To explore the relationship between functionally equivalent nested behaviors and perception.

Main Methods:

Participants estimated maximum vertical reaching height under three conditions.
Conditions involved reaching from the floor, stepping up on a stool, or using a rod.
These conditions represented nested behaviors with varying impacts on reaching ability.

Main Results:

Perception of maximum reaching height was scaled to the action capabilities in all conditions.
Nested behaviors, whether altering capabilities or not, influenced reaching perception.
Functionally equivalent nested behaviors resulted in functionally equivalent perceptual changes.

Conclusions:

Perception of action possibilities is dynamically adjusted based on anticipated nested behaviors.
The way nested actions modify capabilities significantly impacts perceived action boundaries.
This research supports a prospective view of action perception, where future actions shape present capabilities.