Author's Keywords: Reaching, eye-scanning, perceptual-motor mapping	Convention Convention is an application service for managing large or small academic conferences, annual meetings, and other types of events! Submission - Custom fields, multiple submission types, tracks, audio visual, multiple upload formats, automatic conversion to pdf. Review - Peer Review, Bulk reviewer assignment, bulk emails, ranking, z-score statistics, and multiple worksheets! Reports - Many standard and custom reports generated while you wait. Print programs with participant indexes, event grids, and more! Scheduling - Flexible and convenient grid scheduling within rooms and buildings. Conflict checking and advanced filtering. Communication - Bulk email tools to help your administrators send reminders and responses. Use form letters, a message center, and much more! Management - Search tools, duplicate people management, editing tools, submission transfers, many tools to manage a variety of conference management headaches! Click here for more information.
Association: Name: XVth Biennial International Conference on Infant Studies URL: http://www.isisweb.org
Citation: URL: http://www.allacademic.com/meta/p94301_index.html Direct Link: HTML Code:

Corbetta, Daniela., Snapp-Childs, Winona. and Williams, Joshua. "Eye scanning during reaching in 6- to 12-months old infants" Paper presented at the annual meeting of the XVth Biennial International Conference on Infant Studies, Westin Miyako, Kyoto, Japan, Jun 19, 2006 <Not Available>. 2009-05-25 <http://www.allacademic.com/meta/p94301_index.html>

Corbetta, D. , Snapp-Childs, W. and Williams, J. , 2006-06-19 "Eye scanning during reaching in 6- to 12-months old infants" Paper presented at the annual meeting of the XVth Biennial International Conference on Infant Studies, Westin Miyako, Kyoto, Japan <Not Available>. 2009-05-25 from http://www.allacademic.com/meta/p94301_index.html

Publication Type: Individual Poster Abstract: Background and Aims: Vision is central to the development of reaching. To reach one needs to identify the location, size, orientation, and other pertinent characteristics of objects. Past research has suggested that when infants begin reaching at 4 months of age, they may not pay close attention to objects’ physical characteristics because these infants are mainly concerned with bringing their hand in contact with the target, and therefore may mainly pay attention to object location. From 8 months old, however, infants can fine-tune their reaches, display object-specific responses and take into account information about objects properties such as their orientation, size, or shape. Do infants in different stages of reaching development scan objects differently prior to reaching? In this study, we address this issue by measuring directly looking patterns prior to reaching using computer-based eye-scanning and motion analysis technology. Ultimately, our goal is to understand the developmental process of perceptual-motor mapping in infancy. Methods: 24 infants (10 females, 14 males), 6 -12 months old, were instrumented with a light weight head-mounted eye-scanner that sampled eye movements at a rate of 60Hz and with one mini-marker on each wrist from a motion analysis system that sampled reaching movements at 120Hz. After calibration of the eye-scanner, infants were presented with up to 20 objects to look at and reach. Four kinds of objects were used: small or large balls and wooden rods or plastic spoons presented horizontally or vertically. Key Results: The rate of object scanning prior to reaching did not change with age; scanning seemed to be more an individual characteristic. Some younger and older infants, alike, seemed to be consistent object scanners while others never seemed to scan objects. Object scanning typically occurred prior to reaching and was usually related to the object orientation or size; scanning was more horizontal for horizontal objects and more vertical for vertical objects. Also, infants scanned the large objects more than the small ones. Conclusions: These results suggest that scanning patterns associated with reaching do not show a developmental trend after 6 months of age even though reaching patterns do change. More importantly, these results suggest that young infants who are scanning objects and likely identifying their orientation or size do not map this sensory information to their motor pattern. Further analyses pairing scanning patterns with reaching patterns will allow us determine whether the reaching for scanned objects differs from reaching for non-scanned objects. This research was supported by grant NICHD HD043236

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