Question

1. How does the size of an object affect the grip that an infant uses?  How might this factor influence where an infant falls on the Halverson’s prehension sequence?  How does the shape of an object affect the grip used?

            

2. Do infants learn to reach for objects by better matching their hand position to the seen location of the object, or by better controlling their arms? Explain why you chose your answer.

3. What are the major developmental trends we see in children as they become increasingly proficient in catching?

Answer 1

The first two years in object oriented behaviour reflect emergence of object representations.The visual sysem of infants is organised at the time of birth. They tend to direct their vision towards areas of motion, bright colours etc.Reaching objects is fundaental skill that take place in infats around 3-4 months .The infants want to see their hand movement inorder to reach their target .when an object is near their hand ,they begin to change their hand movements towards the object . The object size is really an important factor influencing the grip of infants than object shape has little influence.The arm oriented behaviour is emerged as a natural source of learning .the infants can spread their fingers farther apart as they felt the objects size.The infant's sensory-motor -biochemical systems organize in a coordinated way to achieve the infant's goal.when an infant reaches for a toy, grasps it, bring it to his hand ,play an dthen to mouth.The factors that influence hand skills include infant's size,growth,biochemical attributes ,neurological maturation,sensation and cognition.

At birth infant's hands are clenched .Around 3 months they will begin to open their hands on their own.They gain control over their movements .They try to lift objects.At that time an increase in hand eye co ordination.About 4 onths they get a grip on samll objects .Their vision also improves and they follow the moving objects.Thus each developmental stages makes his hand co ordination more and more proper.

Answer 2

The first two years in object oriented behaviour reflect emergence of object representations.The visual sysem of infants is organised at the time of birth. They tend to direct their vision towards areas of motion, bright colours etc.Reaching objects is fundaental skill that take place in infats around 3-4 months .The infants want to see their hand movement inorder to reach their target .when an object is near their hand ,they begin to change their hand movements towards the object . The object size is really an important factor influencing the grip of infants than object shape has little influence.The arm oriented behaviour is emerged as a natural source of learning .the infants can spread their fingers farther apart as they felt the objects size.The infant's sensory-motor -biochemical systems organize in a coordinated way to achieve the infant's goal.when an infant reaches for a toy, grasps it, bring it to his hand ,play an dthen to mouth.The factors that influence hand skills include infant's size,growth,biochemical attributes ,neurological maturation,sensation and cognition. At birth infant's hands are clenched .Around 3 months they will begin to open their hands on their own.They gain control over their movements .They try to lift objects.At that time an increase in hand eye co ordination.About 4 onths they get a grip on samll objects .Their vision also improves and they follow the moving objects.Thus each developmental stages makes his hand co ordination more and more proper.

Answer 3

The first two years in object oriented behaviour reflect emergence of object representations.The visual sysem of infants is organised at the time of birth. They tend to direct their vision towards areas of motion, bright colours etc.Reaching objects is fundaental skill that take place in infats around 3-4 months .The infants want to see their hand movement inorder to reach their target .when an object is near their hand ,they begin to change their hand movements towards the object . The object size is really an important factor influencing the grip of infants than object shape has little influence.The arm oriented behaviour is emerged as a natural source of learning .the infants can spread their fingers farther apart as they felt the objects size.The infant's sensory-motor -biochemical systems organize in a coordinated way to achieve the infant's goal.when an infant reaches for a toy, grasps it, bring it to his hand ,play an dthen to mouth.The factors that influence hand skills include infant's size,growth,biochemical attributes ,neurological maturation,sensation and cognition. At birth infant's hands are clenched .Around 3 months they will begin to open their hands on their own.They gain control over their movements .They try to lift objects.At that time an increase in hand eye co ordination.About 4 onths they get a grip on samll objects .Their vision also improves and they follow the moving objects.Thus each developmental stages makes his hand co ordination more and more proper.