Is there a deficit in recognition in old age?

Background: There is some debate over of the effect of aging on the ability to recognize previously processed information. The aim of the present study is to analyze, by means of different measurements, whether aging has differential effects on recall and recognition of visual and verbal materials.

Method: A within-subject design was used to compare two groups of different age (younger, older) in tasks of recall and recognition of images and of the verbal descriptors exchanged in a conversation.

Positive bias is a defining characteristic of aging to the same extent as declining performance.

The aim of this study was to analyze whether one of the supposed gains of aging--positive bias--discriminates between young and older participants to the same extent as some of the losses in cognitive performance--recall and source monitoring--that come with age. Two age groups (N = 120)--young (M = 22.08, SD = 3.

Age differences in source monitoring and referent discrimination.

In contrast to previous studies which addressed separately memory for source and referent, the present experiment analyzes the effects of aging on memory for both, source and referent. The experiment simulated a conversation between two people exchanging descriptors of themselves and the other speaker (e.g.

Age-related changes in recognition and response criterion.

Recognition performance does not usually change along the lifespan, but the response criterion usually does, and in general, it changes from being conservative during youth to being liberal, in old age. The focus of the present study is to analyze the changes that take place, both in discrimination and response criterion, as a result of aging in two recognition tasks: one with neutral images, and the other with faces showing positive and negative emotional expressions. Two groups of participants performed both tasks: young (N = 21; age range, 17-33 years), older (N = 21; age range, 65-91 years).

[Memory and aging: recall, recognition and positive bias].

The aim of the present study was to analyze the decay and maintenance of various aspects of the mnemic performance among the aged population and its potential relationship with a positive information processing bias. Thus, we compared recall and recognition performance in two groups of different ages (young, old). Results indicated that the free recall deficit found among the aged participants did not affect the serial position curve evenly, but took its toll in the absence of the primacy effect, whereas it left the recency effect intact.