Manipulative Skills Pre Test Questions
And 100% Correct Answers.
What makes humans unique in performing manipulative skills? - Answer Opposable thumbs
What structural constraints contribute to the uniqueness of performing manipulative skills? -
Answer Different musculature that is independent in using our fingers and thumbs
- Structural
How might these constraints change over a life span? - Answer - Develop more control and
coordination through practice (musician)
- In older adulthood (due to arthritis or joint pain) there are some declines in motor skills overall
- range of motion and capability to move could be decreased
What environmental and task constraints influence manipulation of an object? - Answer -
Properties of the object are influenced by the medium they are in
- What is your plan to do with the object
What are the two phases of reaching and grasping? - Answer Extending arm towards the
object and grasping it
Santello & Soechting (1998) - Answer Hand posture gradually shapes to object contours
during the reach
Santello, Winges, and Weber (2003) - Answer Reaching and gasping occurs without visual
information during the reach
Prehension - Answer Grasping of an object
, • Result
- Transition from power to prescription grips
- Defined 10 phases of prehension development
• Limitation of study
- Imposition of one task, one set of environmental condition
At which month of life did Halverson conclude that infants grasp with fingers only? - Answer
5 months
Reaching and grasping: proficient performers execute the reach and grasps as a.... - Answer
single skill
grasping FIRST... then - Answer reaching SECOND
What are Halverson's 10 phases of grasping development? - Answer 1. no contact
2. contact only
3. primitive squeeze
4. squeeze grasp
5. hand grasp
6. palm grasp
7. superior-palm grasp
8. inferior-forefinger grasp 9. forefinger grasp
10. superior-forefinger grasp
What are the topic of Hohlstein's research?
What was his method?
What were his results? - Answer Topic: Grasping
Method: Replicated Halverson's study but used objects of different sizes and shapes