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Prehensile / Grasp

Per Case-Smith, 5th ed. pg. 101 // NBCOT review guide, 6h ed. p 104-106

Looks at cube 3 months
Looks & approaches cube 5 months
Looks and crudely grasps cube with whole hand (raking) 6 months
Scissors grasp - age 8 months
Inferior pincer grasp - age 9 months
Scissors grasp - definition between thumb and side of curled index finger
Inferior pincer grasp - definition between ventral surfaces of thumb and index finger, distal thumb jt. ext. -- beginning of thumb opposition
Inferior scissors grasp - definition raking object into palm with adducted totally flexed thumb and all flexed fingers
Pincer grasp - age 10 months
Pincer grasp - definition between distal pads of thumb and index finger, distal thumb joint slight flexed, thumb opposed
Fine pincer grasp - age 12 months
Palmer grasp - age 5 months
Palmer grasp - definition fingers on top surface of object, press it into center of palm with thumb abducted
Radial-palmer grasp - age 6 months
Radial-palmer grasp - definition fingers on far side of object press it against opposed thumb and radial side of palm
Radial-digital grasp - age 8 months
Radial-digital grasp - definition object held with the opposed thumb and fingertips
Inferior scissors grasp - age 7 months
Created by: msmaus