Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Guided search: the effects of learning

E W Yund¹, R Efron

¹Neurophysiology-Biophysics Research Laboratory, V. A. Northern California System of Clinics, Pleasant Hill, California, 94523, USA.

Brain and Cognition

|August 1, 1996

Summary

Extended practice in visual search tasks significantly improves target detection, with learning effects persisting for years. This training enhances orientation and location specificity within the guided search model.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

The Effects of Repeat Testing, Malingering, and Traumatic Brain Injury on Computerized Measures of Visuospatial Memory Span.

Frontiers in human neuroscience·2016

Same author

The Effects of Repeated Testing, Simulated Malingering, and Traumatic Brain Injury on Visual Choice Reaction Time.

Frontiers in human neuroscience·2015

Same author

Biology without Consciousness-and Its Consequences.

Perspectives in biology and medicine·2015

Same author

Intermodal attention modulates visual processing in dorsal and ventral streams.

NeuroImage·2012

Same author

Efficacy of tailored computer-based neurorehabilitation for improvement of movement initiation in Parkinson's disease.

Brain research·2012

Same author

Computerized analysis of error patterns in digit span recall.

Journal of clinical and experimental neuropsychology·2011

Area of Science:

Cognitive Psychology
Visual Perception
Human Factors

Background:

Previous research interpreted visual search experiments using the guided search model.
The guided search model explains how attention is directed to relevant items in a visual display.

Purpose of the Study:

To investigate the effects of extended practice on visual search for orientation-defined targets.
To examine the specificity and persistence of learning in visual search tasks.

Main Methods:

Three experiments involving visual search tasks with varying practice durations (6 weeks).
Measurement of reaction time gradients (RTG) and visual field superiority.
Assessment of learning interference and specificity (orientation and location).

Main Results:

Marked decreases in RTG and visual field superiority with extended practice.
Learning persisted for over 3 years.
Demonstrated interference when learning different orientations at the same location.
Learning was specific to target orientation and location, and concurrent learning of two targets was possible.

Conclusions:

Extended practice leads to robust, long-lasting improvements in visual search performance.
Learning is specific to the trained target orientation and location.
Results support a localized increase in the top-down selection mechanism of the guided search model.

Related Experiment Videos