Hand preference for pointing gestures and bimanual manipulation around the vocabulary spurt period

Hand preference for pointing gestures and bimanual manipulation around the vocabulary spurt period.

This study investigated the development of hand preference for bimanual manipulative activities and pointing gestures in toddlers observed longitudinally over a 5-month period, in relation to language acquisition. The lexical spurt was found to be accompanied by an increase in the right-sided bias for pointing but not for manipulation. Moreover, results revealed a significant correlation betwee...

Reexamining the vocabulary spurt.

The authors asked whether there is evidence to support the existence of the vocabulary spurt, an increase in the rate of word learning that is thought to occur during the 2nd year of life. Using longitudinal data from 38 children, they modeled the rate of word learning with two functions, one with an inflection point (logistic), which would indicate a spurt, and one without an inflection point ...

Efficient Bimanual Symmetric 3D Manipulation for Markerless Hand- Tracking

Recently, stable markerless 6 DOF video based hand-tracking devices became available. These devices simultaneously track the positions and orientations of the user’s both hands in different postures with at least 25 frames per second. Such hand-tracking allows for using the human hands as natural input devices. However, the absence of physical buttons for performing click actions and state chan...

Reliability of the Modified In-hand Manipulation Test and the Relationship Between In-hand Manipulation and Handwriting

Objectives: This study aimed at analyzing the test-retest and interrater reliabilities of the Test of In-Hand Manipulation-Modified (TIHM-M), as well as the relationship between in-hand manipulation and handwriting. Methods: We administered the TIHM-M twice, two days apart, and the Beknopte Beoordelingsmethode voor Kinder Handschriften (BHK) - Concise Assessment Method for children’s handwriti...

The Reorganization of Communicative Behaviors around the Onset of the Vocabulary Spurt : A Dynamic Systems Approach