Life span changes in visual enumeration
The number discrimination task
Bibliographic Data
| ID | 9785941 |
|---|---|
| Authors | Lana M Trick (0000-0002-2035-4602, corresponding author), James T Enns (0000-0002-3676-8316), Darlene A Brodeur |
| Year | 1996 |
| Volume | 32 |
| Issue | 5 |
| Pages | 925-932 |
| Publication date | 1996-09-01 |
| Open Access | No |
| Type | ARTICLE |
| Venue | Developmental Psychology (JOURNAL) |
| Journal identifiers | ISSN: 0012-1649 • E-ISSN: 1939-0599 |
| Publisher | American Psychological Association (APA) (PUBLISHER) |
| DOI | 10.1037/0012-1649.32.5.925 |
| OpenAlex | W1992848918, W4235866792 |
| Language | EN |
| Citations received | 4 |
| References cited | 2 |
Participants from 5 groups with mean ages of 6, 8, 10, 22, and 72 years were tested on a series of speeded number discriminations: 1 vs. 2, 3 vs. 4, 6 vs. 7, and 8 vs. 9. The primary measure of interest-response time slope as a function of number size-decreased with age for numbers in the 1-4 range. However, a U-shaped age function emerged in the 6-9 range, with larger slopes for children and senior adults, and the smallest slopes for young adults. These data suggest that different processes are involved in enumerating small and large numbers of items. It is argued that subitizing, the process for small numbers, makes only minimal demands on spatial attention and thus shows developmental improvements without any decline in old age. In contrast, counting, the process for large numbers, requires sophisticated coordination of spatial attention, which has previously been shown to first improve and then decline over the life span.
Age groups · Attention span · Biology · Cognition · Cognitive psychology · Combinatorics · Contrast (vision · Developmental psychology · Enumeration · Evolutionary biology · Function (biology · Life span · Perception · Range (aeronautics · Span (engineering · Statistics · Task (project management · Visual perception · Artificial Intelligence · Cognitive and developmental aspects of mathematical skills · Computer Science · Demography · Mathematics · Neuroscience · Psychology · Reading and Literacy Development · Visual and Cognitive Learning Processes
| Citations per year | 0.29 |
|---|---|
| Citation span | 2005 - 2025 (21) |
| Highly cited | No |