1. Age differences in speed and strategies of perceptual search;Arnold;Gerontologist,1978
2. Age changes in speed of behavior: Its central nature and physiological correlates;Birren,1965
3. The relation of problem length in simple addition to time required, probability of success, and age;Birren;Journal of Gerontology,1954
4. Cognitive sets, speed and accuracy of performance in the elderly;Brinley,1965
5. Information processing rates in the elderly;Cerella;Psychological Bulletin,1985