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Initially, involuntary dropping, then object is pulled out of one hand by the other hand releasing skills Releasing skills: Development progresses from no release (age) 0-1 month Releasing skills: Development progresses from no release (0-1 month) to involuntary release (age) 1-4 months Releasing skills: Development progresses from no release (0-1 month) to involuntary release (1-4 months) to two-stage transfer (age) 5-6 months Releasing skills: Development progresses from no release (0-1 month) to involuntary release (1-4 months) to two-stage transfer (5-6 months) to one-stage transfer (age) 6-7 months Releasing skills: Development progresses from no release (0-1 month) to involuntary release (1-4 months) to two-stage transfer (5-6 months) to one-stage transfer (6-7 months) to voluntary release (age) 7-9 months no release (age) 0-1 month involuntary release (age) 1-4 months two-stage transfer (age) 5-6 months one-stage transfer (age) 6-7 months voluntary release (age) 7-9 months Releasing skills: Refinement continues until age ___ with the attainment of ________ release 4 graded Involves a combination of movements of the shoulder, body, and distal joints of the wrist and hand to hold the item, making appropriate adjustments as necessary to maintain this hold Carrying skills Carrying skills: Involves a _______ of movements combination Carrying skills: Involves a combination of movements of the shoulder, body, and ______ joints of the wrist and _____ distal hand Carrying skills: Involves a combination of movements of the shoulder, body, and distal joints of the wrist and hand to hold the item, making the appropriate _________ as necessary to __________this hold adjustments maintain Asymmetric movements prevail until 3 months, and then symmetric movements emerge until 10 months Bilateral hand use _________movements prevail until 3 months Asymmetric Asymmetric movements prevail until 3 months, and then symmetric movements emerge until ___months 10 By ___ to___ months, the baby used both hands for different functions 12 to 18 At ___ to ___ months, manipulation skills emerge 18 to 24 The ability to use two different hands for two very different functions emerges at age ___ 2 1/2