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Literature DB >> 12812276

A diffusion model analysis of the effects of aging on brightness discrimination.

Roger Ratcliff¹, Anjali Thapar, Gail McKoon.

Abstract

The effects of aging on decision time were examined in a brightness discrimination experiment with young and older subjects (ages, 60-75 years). Results showed that older subjects were slightly slower than young subjects but just as accurate. Ratcliff's (1978) diffusion model was fit to the data, and it provided a good account of response times, their distributions, and response accuracy. There was a 50-msec slowing of the nondecision components of response time for older subjects relative to young subjects, but response criteria settings and rates of accumulation of evidence from stimuli were roughly equal for the two groups. These results are contrasted with those obtained from letter discrimination and signal-detection-like tasks.

Mesh：

Year: 2003 PMID： 12812276 PMCID： PMC1360154 DOI： 10.3758/bf03194580

Source DB: PubMed Journal: Percept Psychophys ISSN： 0031-5117

25 in total

1. Connectionist and diffusion models of reaction time.

Authors: R Ratcliff; T Van Zandt; G McKoon
Journal: Psychol Rev Date: 1999-04 Impact factor: 8.934

2. Estimating parameters of the diffusion model: approaches to dealing with contaminant reaction times and parameter variability.

Authors: Roger Ratcliff; Francis Tuerlinckx
Journal: Psychon Bull Rev Date: 2002-09

3. A diffusion model analysis of the effects of aging on letter discrimination.

Authors: Anjali Thapar; Roger Ratcliff; Gail McKoon
Journal: Psychol Aging Date: 2003-09

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Authors: Roger Ratcliff; Daniel Spieler; Gail McKoon
Journal: Psychon Bull Rev Date: 2004-08

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Authors: J E Fisk; P Warr
Journal: Psychol Aging Date: 1996-06

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Authors: T A Salthouse
Journal: Psychol Rev Date: 1996-07 Impact factor: 8.934

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Authors: D Elliott; D Whitaker; D MacVeigh
Journal: Vision Res Date: 1990 Impact factor: 1.886

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Authors: R Ratcliff
Journal: Psychol Rev Date: 1985-04 Impact factor: 8.934

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Authors: J Cerella
Journal: Psychol Bull Date: 1985-07 Impact factor: 17.737

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Authors: D L Fisher; R A Glaser
Journal: Psychon Bull Rev Date: 1996-12

72 in total

A diffusion model analysis of the effects of aging on brightness discrimination.

1. Connectionist and diffusion models of reaction time.

2. Estimating parameters of the diffusion model: approaches to dealing with contaminant reaction times and parameter variability.

3. A diffusion model analysis of the effects of aging on letter discrimination.

4. Analysis of group differences in processing speed: where are the models of processing?

5. Age and working memory: the role of perceptual speed, the central executive, and the phonological loop.

Review 6. The processing-speed theory of adult age differences in cognition.

7. Neural contribution to spatiotemporal contrast sensitivity decline in healthy ageing eyes.

8. Theoretical interpretations of the speed and accuracy of positive and negative responses.

9. Information processing rates in the elderly.

10. Molar and latent models of cognitive slowing: Implications for aging, dementia, depression, development, and intelligence.

1. A diffusion model account of the lexical decision task.

2. A diffusion model analysis of the effects of aging in the lexical-decision task.

3. A comparison of sequential sampling models for two-choice reaction time.

4. Age-related differences in diffusion model boundary optimality with both trial-limited and time-limited tasks.

5. Aging and confidence judgments in item recognition.

6. On the interpretation of removable interactions: a survey of the field 33 years after Loftus.

7. Analysis of group differences in processing speed: where are the models of processing?

8. Interpreting the parameters of the diffusion model: an empirical validation.

9. Aging, practice, and perceptual tasks: a diffusion model analysis.

10. Modeling aging effects on two-choice tasks: response signal and response time data.