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Learning a nonmediated route for response selection in task switching.

Darryl W Schneider¹, Gordon D Logan

¹Purdue University, West Lafayette, IN, USA, dws@purdue.edu.

Memory & Cognition

|February 10, 2015

Summary

This summary is machine-generated.

The nonmediated route for response selection is quickly learned and becomes more involved with practice in task-switching. This route uses abstract labels that can be remapped but not rewritten when task rules change.

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Area of Science:

Cognitive Psychology
Neuroscience

Background:

Task-switching research explores how people switch between tasks.
Two response selection routes exist: mediated (categorization) and nonmediated (instance-based retrieval).
The nonmediated route's development and characteristics need further investigation.

Purpose of the Study:

To investigate the development and characteristics of the nonmediated response selection route.
To understand practice effects on the nonmediated route.
To examine how the nonmediated route adapts to changing task rules.

Main Methods:

Two experiments with training and transfer phases were conducted.
Investigated practice effects, transfer effects, and target-specific effects.
Analyzed early responses indicating task-nonspecific selection.

Main Results:

The nonmediated route is rapidly acquired with practice and target-cue order.
Instance-based retrieval in the nonmediated route involves abstract response labels.
These abstract labels can be remapped to new responses but not rewritten.

Conclusions:

The nonmediated route is quickly learned and becomes more influential with practice.
Abstract response labels support flexible but not entirely novel response mapping.
Findings clarify the nonmediated route's role and its interaction with the mediated route in task-switching.