TY  - JOUR
PY  - 1996//
TI  - Predicting age-related differences in visual information processing using a two-stage queuing model
JO  - Journals of gerontology. Series B: psychological sciences and social sciences
A1  - Detweiler, M. C.
A1  - Goldberg, J. H.
A1  - Ellis, R. D.
SP  - 155
EP  - 165
VL  - 51
IS  - 3
N2  - Recent work on age-related differences in some types of visual information processing has qualitatively stated that younger adults are able to develop parallel processing capability, while older adults remain serial processors. A mathematical model based on queuing theory was used to quantitatively predict and parameterize age-related differences in the perceptual encoding and central decision-making aspects of a multiple-frame search task. Statistical results indicated main effects for frame duration, display load, age group, and session of practice. Comparison of the full model and a restricted model indicated an efficient contribution of the encoding speed parameter. The best-fitting parameter set indicated that (1) younger participants processed task information with a two-channel parallel system, while older participants were serial processors; and (2) perceptual encoding had a large impact on age-related differences in task performance. Results are discussed with implications for human factors design principles.<p />  <p>Language: en</p>
LA  - en
SN  - 1079-5014
UR  - http://dx.doi.org/
ID  - ref1
ER  -