Descriptor
| Distance | 3 |
| Visual Acuity | 3 |
| Infants | 2 |
| Visual Perception | 2 |
| Visual Stimuli | 2 |
| Age Differences | 1 |
| Concept Formation | 1 |
| Eye Fixations | 1 |
| Perceptual Development | 1 |
| Physiology | 1 |
| Preschool Children | 1 |
| More ▼ | |
Publication Type
| Journal Articles | 1 |
| Reports - Research | 1 |
| Speeches/Meeting Papers | 1 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedSalapatek, Philip; And Others – Child Development, 1976
Examined acuity thresholds for 1- and 2-month-old infants by presenting square wave gratings in a preference paradigm at four viewing distances. (Author/JMB)
Descriptors: Distance, Infants, Visual Acuity, Visual Perception
Download full textSalapatek, Philip; And Others – 1975
This study investigated whether the acuity threshold for distant targets is elevated for infants ranging in age from 24 to 63 days. Using square wave gratings and a modified staircase procedure, acuity thresholds for each of 331 infants were determined for one or more of the distances 30 cm, 60 cm, 90 cm and 150 cm. Acuity threshold was defined as…
Descriptors: Distance, Eye Fixations, Infants, Physiology
Peer reviewedTronick, Edward; Hershenson, Maurice – Journal of Experimental Child Psychology, 1979
Descriptors: Age Differences, Concept Formation, Distance, Perceptual Development
