| Abstract: | A training experiment was conducted to investigate age differences in the learning that occurs when observers search for an orientation-defined target among a homogeneous set of distractors (i.e., feature search). Eighteen young (M age = 26 years) and seventeen old (M age = 62 years) participants completed seven practice sessions (3,024 trials), followed by a single session of full reversal. Training involved consistent mapping, varied mapping, or nonsearch, in which a precue predicted the target location with 100% validity. Younger and older observers demonstrated equivalent learning rates and equivalent disruption following reversal in all training conditions. Results are interpreted within models of visual attention and search. |
