Although several studies have examined infants' sensitivity to perceptual organizational cues, few have examined the functional relations among these cues. We examined how uniform connectedness (UC) functions in relation to shape and luminance similarity. UC has been characterized as the entry-level mechanism of perceptual organization and would therefore be predicted to be more salient than the other two cues. We found that UC was more salient than shape similarity organization was, to the point that 6to 7-month-old infants failed to even organize on the basis of shape in the presence of UC. Luminance similarity, however, was more salient than UC, even though UC was detected by infants in the presence of luminance cues. We conclude that UC is not necessarily the most salient mechanism of perceptual organization in infancy. Moreover, the luminance- UC-shape salience hierarchy exhibited by 6to 7-month-olds in the present study is consistent with the order of development of sensitivity to these organizational cues.
|Number of pages||12|
|Journal||Attention, Perception, and Psychophysics|
|State||Published - Jan 2009|
Bibliographical noteFunding Information:
This research was supported by grants from the National Science Foundation (BCS 0224240) and the National Institutes of Health (HD-42451, HD-46526).
ASJC Scopus subject areas
- Experimental and Cognitive Psychology
- Language and Linguistics
- Sensory Systems
- Linguistics and Language