Moving What Is Seen: Arm Visibility Modulates Infants' Manual Preference

Author(s)

Pogetti, Livia Silveira ^{[1, 2]} ; de Souza, Rosana Machado ^[1] ; Tudella, Eloisa ^[2] ; Teixeira, Luis Augusto ^[1]

Affiliation

^[1] Univ Sao Paulo, Human Motor Syst Lab, BR-05508030 Sao Paulo - Brazil

^[2] Univ Fed Sao Carlos, Movement Anal & Res Lab, BR-13560 Sao Carlos, SP - Brazil

• Document type: Journal article
• Source: DEVELOPMENTAL NEUROPSYCHOLOGY; v. 39, n. 5, p. 331-341, 2014.
• Web of Science Citations: 4

Abstract

Effect of arm visibility on immediate manual preference was evaluated in 5-month-old infants on the task of reaching for a toy. Manual preference was assessed under full vision, and then in consecutive intervals in which vision of the preferred arm was occluded. Results showed that preferred arm visual occlusion led to reduced frequency of its use, with weakened persistence of that effect in the ensuing reestablishment of full vision. These results reveal that visual contact with the arms modulates their selection to perform reaching movements. (AU)

• FAPESP's process: 09/15193-3 - Visibility of arms in the action of reaching in infants: effect on handedness and motor control
• Grantee: Livia Silveira Pogetti
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 10/01581-9 - Origin, amplification and diffusion of manual preference in childhood and its relation with intermanual asymmetry of performance
• Grantee: Rosana Machado de Souza
• Support Opportunities: Scholarships in Brazil - Doctorate