Infant and adult perceptions of possible and impossible body movements: An eye-tracking study

Morita, Tomoyo; Slaughter, Virginia; Katayama, Nobuko; Kitazaki, Michiteru; Kakigi, Ryusuke; Itakura, Shoji

doi:10.1016/j.jecp.2012.07.003

Cited by 25 publications

(39 citation statements)

References 47 publications

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“…The finding of a preference for impossible hand movements at birth is in line with the preference that older infants manifest for scrambled animated and static bodies (e.g., Christie & Slaughter, ; see review by Slaughter, Stone, & Reed, ) and impossible body movements (Morita et al., ; Reid et al., ). Infants' preference for impossible movements has been explained as being due to the fact that these movements are novel or surprising (Reid et al., ; Slaughter et al., ).…”

Section: Discussionsupporting

confidence: 59%

“…Eight-month-olds, in particular those with high fine motor skills, discriminated between biomechanically possible and impossible arm movements and preferred the impossible ones (Reid, Belsky, & Johnson, 2005). Similarly, 12-month-olds looked longer at the elbow of a virtual agent performing impossible, rather than possible, arm movements (Morita et al, 2012). Furthermore, it is not until the age of 18 months that infants distinguish between static pictures of typical and scrambled bodies (Slaughter & Heron, 2004;Slaughter, Heron, & Sim, 2002).…”

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confidence: 98%

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Discrimination of Biomechanically Possible and Impossible Hand Movements at Birth

et al. 2014

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The development of human body perception has long been investigated, but little is known about its early origins. This study focused on how a body part highly relevant to the human species, namely the hand, is perceived a few days after birth. Using a preferential-looking paradigm, 24- to 48-hr-old newborns watched biomechanically possible and impossible dynamic hand gestures (Experiment 1, N = 15) and static hand postures (Experiment 2, N = 15). In Experiment 1, newborns looked longer at the impossible, compared to the possible, hand movement, whereas in Experiment 2 no visual preference emerged. These findings suggest that early in life the representation of the human body may be shaped by sensory-motor experience.

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Section: Discussionsupporting

confidence: 59%

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confidence: 98%

Discrimination of Biomechanically Possible and Impossible Hand Movements at Birth

et al. 2014

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“…A preference for the possible grip would be in line with earlier demonstrations of infants' preference for familiar motion patterns, such as human biological motion (Bertenthal, Proffitt, & Cutting, ; Bertenthal et al., ; Simion et al., ), biologically possible vs. impossible whole‐body movements (Christie & Slaughter, ), and movements that are already part of infants' motor repertoire (Sanefuji, Ohgami, & Hashiya, ). Conversely, a preference for the impossible grip would suggest that the movement is perceived as an unfamiliar, unexpected event as compared to the overly familiar possible movement, and would be in accord with earlier demonstrations of longer looking times to unfamiliar body shapes and movements (Christie & Slaughter, ; Geangu et al., ; Longhi et al., ; Morita et al., ; Reid et al., ; Slaughter et al., ).…”

Section: Methodssupporting

confidence: 76%

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

Senna

Addabbo

Bolognini³

et al. 2016

Infancy

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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.

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“…In typical development, newborn infants and toddlers have been shown to prefer biological motion over non-biological motion (Simion, Regolin, & Bulf, 2008) or inverted motion (Klin, Lin, Gorrindo, Ramsay, & Jones, 2009). The predisposition to attend to biological motion has been shown in typical development using multiple methods including, point-light display (Klin et al, 2009; Morita et al, 2012; Simion et al, 2008), schematic motion such as the Michotte “caterpillar” stimulus (Michotte, 1963; Schlottmann & Ray, 2010), or the motion of a single animated dot (Rutherford, Pennington, & Rogers, 2006; Schultz & Bulthoff, 2013). This early sensitivity and preference for animate motion has been difficult to reconcile with some research suggesting that individuals with autism spectrum disorder (ASD) have deficits in biological motion perception (Annaz et al, 2010; Annaz, Campbell, Coleman, Milne, & Swettenham, 2012; Blake, Turner, Smoski, Pozdol, & Stone, 2003; Centelles, Assaiante, Etchegoyhen, Bouvard, & Schmitz, 2013; Congiu, Schlottmann, & Ray, 2010; David et al, 2013; Herrington et al, 2007; Kaiser, Delmolino, Tanaka, & Shiffrar, 2010; Klin et al, 2009; Koldewyn, Whitney, & Rivera, 2010; Koldewyn, Whitney, & Rivera, 2011).…”

Section: Introductionmentioning

confidence: 99%

Schematic and realistic biological motion identification in children with high-functioning Autism Spectrum Disorder

Wright

Kelley

Poulin‐Dubois

2014

Research in Autism Spectrum Disorders

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Research investigating biological motion perception in children with ASD has revealed conflicting findings concerning whether impairments in biological motion perception exist. The current study investigated how children with high-functioning ASD (HF-ASD) performed on two tasks of biological motion identification: a novel schematic motion identification task and a point-light biological motion identification task. Twenty-two HFASD children were matched with 21 TD children on gender, non-verbal mental, and chronological, age (M years = 6.72). On both tasks, HF-ASD children performed with similar accuracy as TD children. Across groups, children performed better on animate than on inanimate trials of both tasks. These findings suggest that HF-ASD children's identification of both realistic and schematic biological motion identification is unimpaired.

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Infant and adult perceptions of possible and impossible body movements: An eye-tracking study

Cited by 25 publications

References 47 publications

Discrimination of Biomechanically Possible and Impossible Hand Movements at Birth

Discrimination of Biomechanically Possible and Impossible Hand Movements at Birth

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

Schematic and realistic biological motion identification in children with high-functioning Autism Spectrum Disorder

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