Morphological Differences Between Imperative and Declarative Pointing: Hand Shape, Arm Extension, and Body Posture

ABSTRACT. The authors used frame-by-frame video analyses to describe the features of imperative and declarative pointing gestures produced by young children, in comparison to reaching actions. First, the results showed that imperative pointing shared common features with reaching actions (hand shape, arm extension), but body posture observed in reaching differed from the one observed in pointing, both in imperative and declarative contexts. Second, hand shape was influenced by precision constraints: imperative gestures shifted from whole-hand pointing to index-finger pointing when the target was surrounded by distractors. This study is the first of its kind to highlight the effect of several variables on morphological features of pointing using quantitative measures and may provide insights into the nature of imperative and declarative pointing.

[1]  Jenni M. Karl,et al.  Development of rotational movements, hand shaping, and accuracy in advance and withdrawal for the reach-to-eat movement in human infants aged 6-12 months. , 2012, Infant behavior & development.

[2]  Elizabeth Seamans,et al.  Do infants need social cognition to act socially? An alternative look at infant pointing. , 2007, Child development.

[3]  Susan Goldin-Meadow,et al.  Early gesture selectively predicts later language learning. , 2009, Developmental science.

[4]  Hélène Cochet,et al.  Features of spontaneous pointing gestures in toddlers , 2010 .

[5]  Marianne Jover,et al.  Hand preference for pointing gestures and bimanual manipulation around the vocabulary spurt period. , 2011, Journal of experimental child psychology.

[6]  L. Camaioni,et al.  The Role of Declarative Pointing in Developing a Theory of Mind , 2004 .

[7]  D. O'Neill,et al.  Two-year-old children's sensitivity to the referential (in)efficacy of their own pointing gestures. , 2001, Journal of child language.

[8]  Susan Goldin-Meadow,et al.  When gesture-speech combinations do and do not index linguistic change , 2009, Language and cognitive processes.

[9]  Michael Tomasello,et al.  Individual differences in social, cognitive, and morphological aspects of infant pointing , 2011 .

[10]  Rana Esseily,et al.  Handedness for grasping objects and pointing and the development of language in 14-month-old infants , 2011, Laterality.

[11]  M. Tomasello.  Origins of human communication , 2008 .

[12]  A. Meltzoff,et al.  Exploring the Relation Between Memory, Gestural Communication, and the Emergence of Language in Infancy: A Longitudinal Study. , 2006, Infant and child development.

[13]  Charmayne M. L. Hughes,et al.  An investigation into manual asymmetries in grasp behavior and kinematics during an object manipulation task , 2011, Experimental Brain Research.

[14]  S. Kita.  Pointing: Where language, culture, and cognition meet , 2003 .

[15]  M. Tomasello,et al.  Origins of the Human Pointing Gesture: a Training Study , 2022 .

[16]  Michael Tomasello,et al.  Primate Cognition , 2010, Top. Cogn. Sci..

[17]  Joanna Blake,et al.  A cross-cultural comparison of communicative gestures in human infants during the transition to language , 2005 .

[18]  A. Lock,et al.  Some Observations on the Origins of the Pointing Gesture , 1990 .

[19]  Michael Tomasello,et al.  How 14- and 18-month-olds know what others have experienced. , 2007, Developmental psychology.

[20]  George Butterworth,et al.  Dynamic aspects of visual event perception and the production of pointing by human infants , 2002 .

[21]  G. Butterworth,et al.  Onset of pointing and the acquisition of language in infancy , 1996 .

[22]  T. R. Kaminski,et al.  The coordination between trunk and arm motion during pointing movements , 2004, Experimental Brain Research.

[23]  E. Leung,et al.  Development of Pointing as a Social Gesture , 1981 .

[24]  M. Tomasello,et al.  Prelinguistic Infants, but Not Chimpanzees, Communicate About Absent Entities , 2009, Psychological science.

[25]  J. Carpendale,et al.  The Development of Pointing: From Personal Directedness to Interpersonal Direction , 2010, Human Development.

[26]  V. Jaswal,et al.  Preschoolers Expect Pointers (Even Ignorant Ones) to Be Knowledgeable , 2012, Psychological science.

[27]  M. Tomasello,et al.  Twelve-month-olds point to share attention and interest. , 2004, Developmental science.

[28]  J. Vauclair,et al.  Pointing gestures produced by toddlers from 15 to 30 months: different functions, hand shapes and laterality patterns. , 2010, Infant behavior & development.

[29]  Beate Sodian,et al.  Infants' joint attention skills predict toddlers' emerging mental state language. , 2011, Developmental psychology.

[30]  Ingar Brinck,et al.  Attention and the evolution of intentional communication , 2000 .

[31]  G. Butterworth,et al.  Pointing and social awareness: declaring and requesting in the second year , 1996, Journal of Child Language.

[32]  Susan Goldin-Meadow,et al.  Gesture Paves the Way for Language Development , 2005, Psychological science.

[33]  Ingar Brinck.  The pragmatics of imperative and declarative pointing , 2004 .

[34]  J. Fagard.  Linked proximal and distal changes in the reaching behavior of 5- to 12-month-old human infants grasping objects of different sizes , 2000 .

[35]  Cristina Colonnesi,et al.  The relation between pointing and language development: A meta-analysis , 2010 .

[36]  L. Camaioni.  The Emergence of Intentional Communication in Ontogeny, Phylogeny, and Pathology , 1997 .

[37]  P. Perucchini,et al.  Is Infant Initiation of Joint Attention by Pointing Affected by Type of Interaction , 2009 .

[38]  G. Butterworth.  Pointing Is the Royal Road to Language for Babies , 2003 .

[39]  C. Moore,et al.  Social Understanding at the End of the First Year of Life , 1994 .

[40]  M. Tomasello,et al.  Twelve-month-olds communicate helpfully and appropriately for knowledgeable and ignorant partners , 2008, Cognition.

[41]  M. Tomasello,et al.  Social cognition, joint attention, and communicative competence from 9 to 15 months of age. , 1998, Monographs of the Society for Research in Child Development.

[42]  Joanna Blake,et al.  Form and function in the development of pointing and reaching gestures , 1994 .

[43]  Richard Moore.  Learning to do things with words , 2009 .