Thursday, April 21, 2011

Initial hand position in goal-directed movement

In a very relevant study, Khoshnoodi, M., Motiei-langroudi, R.,Omrani, M., Ghaderi-pakdell, F., and Abbassian, A. (2006) demonstrate the importance for kinesthetic memory of a consistent "point of departure" of a movement through the visual field. The initial hand position seems to be more critical than the precise landing on the destination. What that means for HIPOECES work is that effective encoding and anchoring of sound structures such as vowels, consonants, stress, intonation and related phenomena by various types of "strokes" through the visual field, which generally terminate in or accompanied by some type of touch, may be as dependent on where the strokes begin as where they end. At the very least, careful attention to the entire course of movement of these directed, pedagogical gestures can potentially add substantial "punch" to the process. (One obvious way to do that is through the use of eye tracking analogous to that developed by OEI practitioners.) This insight should "move" us to further study!
Khoshnoodi, M., Motiei-langroudi, R.,Omrani, M., Ghaderi-pakdell, F., and Abbassian, A. (2006). Kinesthetic memory in distance reproduction task: importance of initial hand position information. Experimental Brain Research, Vol. 170 Issue 3, p312-319. DOI: 10.1007/s00221-005-0217-5

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