acquisition & retention of basic components of skill robert w. proctor and motonori yamaguchi...
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Acquisition & Retention of Basic
Components of Skill
Robert W. Proctorand
Motonori Yamaguchi
Army Research Office Grant W9112NF-05-1-0153
Training Knowledge and Skills for the Networked Battlefield
Acquisition & Retention of Basic Components of Skill
Use basic tasks that isolate the perceptual, cognitive, and motor components of skill.
Examine factors that influence acquisition and retention of these skill components.
Goal: To obtain evidence for basic principles of skill acquisition that can be applied to more complex task environments.
Acquisition & Retention of Basic Components of Skill
Initial focus on response selectionThis is our area of primary expertiseResponse selection is the aspect of information
processing that benefits most from training (Welford, 1976)
Emphasis on stimulus-response compatibility because it is a pure measure of response-selection efficiencyS-R compatibility properSimon effect
Transfer of Newly Acquired Associations
The new procedures acquired from training can affect performance when transferred to a different task or environment.
Important to determine how specific this transfer is.
Can get not only quantitative but also qualitative changes Focusing on the wrong aspect of training will not help Generalization can occur if people understand the deep
structure of the task
Influence of a Prior Incompatible Location Mapping on the Simon Effect
Practice with an incompatible mapping and transfer to a pure Simon task
Practice Session Transfer Session
Green Red
Influence of a Prior Incompatible Location Mapping on the Simon Effect
Proctor and Lu (1999) Practiced with an incompatible mapping (310
trials per day) for 3 days and transferred to a Simon task (600 trials)
The Simon effect reversed to -24 ms
Vu, Proctor, & Urcuioli (2003)Practiced 72 trials with an incompatible mapping
and transferred to a Simon task with a delay of: 5 minutes—The Simon effect reversed (-9 ms) One week—The Simon effect reversed (-21 ms)
What is Learned?
Associations between specific stimuli and responses?
More abstract, “rule-like” procedures?
Evaluated by crossing practice and transfer dimensions
Practice: vertical or horizontal
Transfer: horizontal
DesignPractice Dimension Transfer Dimension
Horizontal Horizontal
Vertical
Green Red
Results- Transfer to Horizontal Simon Task
Practice Dimension
Practice Trials Horizontal Vertical Control 18*
72 3 15*
600 -18* 2
*denotes that the effect was significant at the .05 level
Generalization Across Stimulus Modalities
Transfer session: Auditory Simon task Practice session: Incompatible mapping of
left-right auditory or visual stimuli to left-right keypressesA prior study with 72 practice trials suggested
no transfer effect to auditory taskVaried amount of practice: 0 (control), 72,
300, or 600 trials
Results- Transfer to Auditory Simon Task
Practice Dimension
Practice Trials Auditory Visual Control 47*
72 41* 42*
300 14* 45*
600 16* 37*
*denotes that the effect was significant at the .05 level
Training with Mixed Mappings and Tasks
Effects of having to maintain multiple associations concurrently
Mixed compatible and incompatible mappings:Longer RT overallBenefit for compatible mapping largely
eliminated Does this finding generalize to a
simulated environment?
Mixed Mappings and Tasks
Task: Fly simulated aircraft, maintaining altitudeWhile flying, squares appear on the top right
or top left of the screen Green square: Turn yoke in that direction Red square: Turn yoke in opposite direction
Four trial blocks Pure compatible Pure incompatible Mixed compatible and incompatible (2 blocks)
Mixed Mappings and Tasks
450
500
550
600
650
700
750
Pure Mixed
Compatible
Incompatible
85
56
Research Plans Basic Components of Skill
Transfer of newly acquired associations
Training with mixed mappings and tasks
Performance of multiple tasks
Integration with Other Work
Training Principles (e.g., specificity of training; procedural reinstatement)
Predictive Modeling using ACT-R and other models