End-state comfort in two object manipulation tasks: Investigating how the movement context influences planning in children, young adults, and older adults.
Dev Psychobiol
; 60(3): 317-323, 2018 04.
Article
in En
| MEDLINE
| ID: mdl-29411871
ABSTRACT
The movement context (pantomime, pantomime with image/object as guide, and actual use) has been shown to influence end-state comfort-the propensity to prioritize a comfortable final hand position over an initially comfortable one-across the lifespan. The present study aimed to assess how the movement context (pantomime, using a dowel as the tool, and actual use) influences end-state comfort when acting with objects (glass/hammer) that differ in use-dependent experience. Children (ages 6-11, n = 70), young adults (n = 21), and older adults (n = 21) picked up an overturned glass to pour water and a hammer to hit a nail, where the handle faced away from the participant. End-state comfort was assessed in each movement context. Findings provide support for an increase in end-state comfort with age, adult-like patterns at age 10, and no difference between older adults and 8- to 9-year-old children. In addition, this work revealed that perception of "graspability" led to an increase in end-state comfort in the hammering task; therefore, suggesting our ability to act with objects and tools in the environment is influenced by use-dependent experience and object perception. Results add to our understanding of changes in motor planning abilities with age, and factors underlying these changes.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Psychomotor Performance
/
Human Development
/
Motor Activity
Limits:
Adolescent
/
Adult
/
Aged
/
Child
/
Female
/
Humans
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Male
/
Middle aged
Language:
En
Journal:
Dev Psychobiol
Year:
2018
Document type:
Article
Affiliation country:
Canadá