ERIC Number: ED188790
Record Type: Non-Journal
Publication Date: 1980-Apr
Reference Count: N/A
Preterm Infants' Visual Preferences for Different Temporal Frequencies.
Gardner, Judith; Karmel, Bernard Z.
Preferential looking behavior to stimuli varying in temporal frequency was examined in 11 prematurely born, Black and Hispanic infants when they were between 37 and 39 weeks of postconceptional age. Infants were tested one hour after they had fed on two successive days. Infants were unswaddled during testing on the first day, and swaddled during testing on the second day. The effects of both stimulus frequency and swaddling were significant. The relationship between amount of looking and frequency yielded a significant linear trend with the fastest frequency (4Hz) being most preferred. The psychophysical function best describing the data was derived and results were discussed with respect to the possible cortical mechanisms controlling the development of looking at temporally, as opposed to spatially, varying stimuli. (Author/SS)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A