# AGING OF VISUAL-COGNITIVE MECHANISMS ON A NEURAL NETWORK

> **NIH NIH R01** · SYRACUSE UNIVERSITY AT SYRACUSE · 1993 · $102,816

## Abstract

The overall aim of this project is to specify the mechanisms that are
responsible for age-related changes in visual-cognitive performance.
Age-related change in several types of visualcognitive performance will
be described and explicated in terms of empirically-derived neural
network models of aging.  Specifically, the factors that contribute to
general and task-specific interindividual and intraindividual variability
in healthy young, middle-aged, and older adults will be identified and
modeled.  The proposed neural network models have the unique property
that their constituent interconnections can be adjusted so as to
represent time-related and practice-related change in the encoding and
subsequent transformation of visual information.  During the three years
of this project, about 400 men and women between the ages of 19 years and
80 years will be tested on measures of 1) perceptual closure or figure
completion, and 2) the perception of apparent motion.  For each
visual-cognitive task, several neurologically plausible network models
will be developed, tested, and contrasted with each other in terms of
their ability to simulate general and task-specific differences in the
distributions of response times and errors for young adults, middle-aged
adults, and older adults.  The outcome of this line of investigation will
have clear implications for the understanding of the mechanisms
responsible for effective cognitive functioning during the middle and
later years of life.

## Key facts

- **NIH application ID:** 3123388
- **Project number:** 1R01AG011451-01
- **Recipient organization:** SYRACUSE UNIVERSITY AT SYRACUSE
- **Principal Investigator:** WILLIAM J. HOYER
- **Activity code:** R01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 1993
- **Award amount:** $102,816
- **Award type:** 1
- **Project period:** 1993-04-15 → 1996-03-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/3123388

## Citation

> US National Institutes of Health, RePORTER application 3123388, AGING OF VISUAL-COGNITIVE MECHANISMS ON A NEURAL NETWORK (1R01AG011451-01). Retrieved via MORVS 2026-10-25 from https://api.morvs.ai/grant/nih/3123388. Licensed CC0.

---

*[NIH grants dataset](/datasets/nih-grants) · CC0 1.0*