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Lakshmi Prabha, R.
- A Study of Comparison of Implicit Learning in Post Stroke and Age-Matched Elderly Subjects
Authors
1 P.T. School and Center, Seth G.S. Medical College , KEMH, Mumbai, IN
Source
Indian Journal of Physiotherapy & Occupational Therapy-An International Journal, Vol 7, No 4 (2013), Pagination: 90-96Abstract
Background: A motor skill can be learnt implicitly without awareness of what is being learnt. There is inadequate evidence available whether adults with stroke can learn a motor skill implicitly. Aim: To examine the ability of adults who had unilateral stroke to learn implicitly a perceptual motor task and to compare them with age matched elderly subjects. Settings and Design: This was a prospective experimental study. 30 subjects with unilateral stroke were compared with 30 age -matched elderly subjects for speed of performance of a serial response time task(SRT).Materials and method: Subjects were asked to perform sequences of hand movements in response to target lights in 2 conditions: a patterned sequence and a random sequence. They were not given explicit knowledge of 2 conditions. The SRT to perform both patterned and random sequence activity was measured and comparison was done between both groups. On second day SRT of patterned sequence activity was measured for both groups to test retention.
Results: The mean SRT for both groups showed statistically significant decrease with patterned sequence(mean difference-elderly:3.745, stroke:5.108) increase with random sequence (mean difference-elderly:2.792, stroke:3.592) and again decrease with reintroduction of patterned sequence(mean difference-elderly:1.762,stroke:2.423). There was statistically significant retention of implicit learning in both groups. Conclusion: Implicit Learning of Serial Response Time Task is preserved in post Stroke subjects since both the groups showed the similar trend of performance in all the blocks, however, speed of performance of post stroke subjects was slower than that of normal elderly subjects.
Keywords
Implicit Learning, Serial Response Time Task, Patterned Sequence, Random Sequence, RetentionReferences
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- Sex Determination from Hand Dimensions in Indian Population
Authors
1 Dept of Anatomy, Sri Siddhartha Medical College, Tumkur, Karnataka, IN
2 Department of Anthropology, Manasa Gangothri, Mysore, IN
Source
Indian Journal of Public Health Research & Development, Vol 3, No 3 (2012), Pagination: 27-30Abstract
Determination of sex from extremities plays an important role in identifying the deceased in forensic examinations. The dimensions of the hand have been used for the determination of sex, age and stature of an individual. The purpose of the present study was to determine sex by hand dimensions among 200 South Indian and North Indian subjects. Statistical analysis indicated that bilateral variations were insignificant for all measurements. The average hand length and breadth were found to be about 1 cm greater in males as compared to females. Hand index was calculated and has been used for the determination of sex. Hand index more than 42 was suggestive of males and less than 42 is that of females. These differences were insignificant when values were compared between subjects of the same sex in South Indian and North Indians.Keywords
Sex, Hand Dimensions, Determination, Indian PopulationReferences
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