The development of the ability to recognize the whole human body shape has long been investigated in infants, while less is known about their ability to recognize the shape of single body parts, and in particular their biomechanical constraints. This study aimed to explore whether 9- and 12-month-old infants have knowledge of a hand-grasping movement (i.e., pincer grip), being able to recognize violations of the hand's anatomical constraints during the observation of that movement. Using a preferential looking paradigm, we showed that 12-month-olds discriminate between biomechanically possible and impossible pincer grips, preferring the former over the latter (Experiment 1). This capacity begins to emerge by 9 months of age, modulated by infants' own sensorimotor experience with pincer grip (Experiment 2). Our findings indicate that the ability to visually discriminate between pincer grasps differing in their biomechanical properties develops between 9 and 12 months of age, and that experience with self-produced hand movements might help infants in building a representation of the hand that encompasses knowledge of the physical constraints of this body part.

Senna, I., Addabbo, M., Bolognini, N., Longhi, E., MACCHI CASSIA, V., Turati, C. (2017). Infants' Visual Recognition of Pincer Grip Emerges Between 9 and 12 Months of Age. INFANCY, 22(3), 389-402 [10.1111/infa.12163].

Infants' Visual Recognition of Pincer Grip Emerges Between 9 and 12 Months of Age

SENNA, IRENE
Primo
;
ADDABBO, MARGARET
Secondo
;
BOLOGNINI, NADIA;LONGHI, ELENA;MACCHI CASSIA, VIOLA MARINA
Penultimo
;
TURATI, CHIARA
Ultimo
2017

Abstract

The development of the ability to recognize the whole human body shape has long been investigated in infants, while less is known about their ability to recognize the shape of single body parts, and in particular their biomechanical constraints. This study aimed to explore whether 9- and 12-month-old infants have knowledge of a hand-grasping movement (i.e., pincer grip), being able to recognize violations of the hand's anatomical constraints during the observation of that movement. Using a preferential looking paradigm, we showed that 12-month-olds discriminate between biomechanically possible and impossible pincer grips, preferring the former over the latter (Experiment 1). This capacity begins to emerge by 9 months of age, modulated by infants' own sensorimotor experience with pincer grip (Experiment 2). Our findings indicate that the ability to visually discriminate between pincer grasps differing in their biomechanical properties develops between 9 and 12 months of age, and that experience with self-produced hand movements might help infants in building a representation of the hand that encompasses knowledge of the physical constraints of this body part.
Articolo in rivista - Articolo scientifico
infants, pincer grip, visual preference, sensorimotor experience
English
389
402
14
Senna, I., Addabbo, M., Bolognini, N., Longhi, E., MACCHI CASSIA, V., Turati, C. (2017). Infants' Visual Recognition of Pincer Grip Emerges Between 9 and 12 Months of Age. INFANCY, 22(3), 389-402 [10.1111/infa.12163].
Senna, I; Addabbo, M; Bolognini, N; Longhi, E; MACCHI CASSIA, V; Turati, C
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/136168
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