Publication statistics

Pub. period:1989-1992
Pub. count:4
Number of co-authors:7



Co-authors

Number of publications with 3 favourite co-authors:

Arthur D. Fisk:3
Wendy A. Rogers:2
Lynne Ann Fickes:1

 

 

Productive colleagues

Mark D. Lee's 3 most productive colleagues in number of publications:

Wendy A. Rogers:52
Arthur D. Fisk:35
Brian P. Cooper:3
 
 
 
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Mark D. Lee

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Publications by Mark D. Lee (bibliography)

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1992
 
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Cooper, Brian P., Lee, Mark D., Goska, Robert E., Anderson, Marjo M., Gay, Jr. Paul E., Fickes, Lynne Ann and Fisk, Arthur D. (1992): Age-Related Effects in Consistent Memory Search: Performance is the Same but What about Learning?. In: Proceedings of the Human Factors Society 36th Annual Meeting 1992. pp. 146-150.

Two experiments were conducted to investigate the mechanisms which underlie the learning in consistently mapped (CM) memory search. In Experiment 1, old and young adults were trained in both CM and variably mapped (VM) category search. The training results replicate previous findings by Fisk and Rogers (1991). Even though older adults are initially at a disadvantage relative to young adults, the comparison times of young and old adults are near zero after CM training. For VM, older adults remain at a disadvantage relative to younger adults, even after extensive training. A full reversal manipulation was implemented in Experiment 2 to investigate the learning in memory search. Initially, the young subjects were less affected by the full reversal condition compared to the performance of the older adults. However, older subjects quickly recovered and both young and old were performing at trained CM levels within 60 trials of additional practice. These results suggest: (a) attention is not being trained in CM memory search; (b) automatic category activation does not contribute much, if at all, to the performance improvement in memory search; and (c) age-invariant learning mechanisms account for performance improvement in CM memory search.

© All rights reserved Cooper et al. and/or Human Factors Society

 
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Lee, Mark D. (1992): Degree of Task Consistency and Maintenance of Skill Level in Semantic Category Visual Search. In: Proceedings of the Human Factors Society 36th Annual Meeting 1992. pp. 1311-1315.

The present experiment investigated the effect of varying the degree of task consistency on the performance and maintenance of skill in a semantic category visual search task. It is well established that for a wide variety of tasks, skill development is a function of the degree of task consistency. However, the effect of inconsistency on established skills has not been investigated to date. The present experiment included a consistent Training Phase, an Adjusted Consistency Phase, and a Retraining Phase. Subjects were trained for 6,000 Consistently Mapped (CM) trials on two different categories. Subjects then performed 4,000 trials in which one of the previously trained categories remained 100% consistent, while the other category became either 100, 67, 50, or 33% consistent. Task consistency was then restored and participants performed another 4,200 CM trials. The Retraining Phase included a New CM category. Results indicated that performance was disrupted by inconsistency, and that disruption increased as consistency decreased. Upon the retum of task consistency, performance improved rapidly, although some performance disruption was still evident. The results are discussed in terms of visual search theories, and for their relation to training design.

© All rights reserved Lee and/or Human Factors Society

1991
 
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Lee, Mark D., Rogers, Wendy A. and Fisk, Arthur D. (1991): Contextual Change and Skill Acquisition in Visual Search: Does the Rate of Change Affect Performance?. In: Proceedings of the Human Factors Society 35th Annual Meeting 1991. pp. 1377-1381.

The present investigation examined the effects of training context on the development of a skill in a semantic category visual search task. Thirty-two subjects were trained in a visual search task which allowed the separate examination of feature learning and attention strengthening. Subjects were trained in a Consistently Mapped (CM) condition which allowed both feature learning and attention strengthening, "Attenuated Strength" search conditions which allowed only feature learning, and a Variably Mapped (VM) condition which allowed neither feature learning or attention strengthening. The present experiment also examined the temporal characteristics of feature learning by manipulating the training context which was defined as the number of trials in a row that a particular search condition appeared. There were four different training contexts used (1, 5, 10, and 50) and eight subjects were assigned to each. Each subject performed 11,000 training trials. Analysis of the reaction time (RT) data indicated that within each training context, RT was fastest for the CM condition, intermediate for the Attenuated Strength conditions, and slowest for the VM condition. The results also suggest that 10 trials were sufficient for feature learning to occur. Furthermore, while there was evidence of attention strengthening in the CM condition there was no evidence of attention strengthening in the Attenuated Strength conditions. For inconsistent tasks that allow feature learning, the rate at which the context changes is a critical variable in determining final task performance.

© All rights reserved Lee et al. and/or Human Factors Society

1989
 
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Lee, Mark D., Rogers, Wendy A. and Fisk, Arthur D. (1989): Transfer of Automatic Component Processes to Compatible, Incompatible, and Conflict Situations: Issues for Retraining. In: Proceedings of the Human Factors Society 33rd Annual Meeting 1989. pp. 1243-1247.

An experiment was conducted to examine the potential negative effects of automatic task components in situations requiring re-use or inhibition of those components. Participants trained on a category search task for 8,4OO trials in three consistent (CM) and one varied mapping (VM) conditions. Following training, 2,352 trials were completed in seven transfer conditions. Results suggest that skill transfers to similar task situations. However, the data demonstrate that if the transfer situations are incompatible or prior learning must be inhibited, performance is disrupted. Although each condition improved after 336 transfer trials, performance did not reach pre-transfer levels in incompatible or inhibited conditions. The present data are useful for predicting transfer performance when skill components are trained to automaticity using a part-task methodology.

© All rights reserved Lee et al. and/or Human Factors Society

 
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Publication statistics

Pub. period:1989-1992
Pub. count:4
Number of co-authors:7



Co-authors

Number of publications with 3 favourite co-authors:

Arthur D. Fisk:3
Wendy A. Rogers:2
Lynne Ann Fickes:1

 

 

Productive colleagues

Mark D. Lee's 3 most productive colleagues in number of publications:

Wendy A. Rogers:52
Arthur D. Fisk:35
Brian P. Cooper:3
 
 
 
May 22

User error: replace user and press any key to continue.

-- Popular computer one-liner

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

Help us help you!