Visual cues and the handwriting of older adults: a kinematic analysis.

Kinematic techniques determined the nature of any age-related changes in the fluency of handwriting movements and also the extent to which any changes can be related to a differential utilization of visual feedback. To quantitatively document the kinematics of handwriting movements, 24 young and 24 older adults were compared by having them write simple cursive letter ls 4 times on a graphics tablet, under 4 different visual conditions (no vision, non inking pen, inking pen, and lined paper). Pen tip position was sampled at 200 Hz, from which kinematic indexes of movement efficiency and consistency were derived. Quantitative differences in movement trajectories were found in the older adults, who produced less efficient movements with a concomitant increased utilization of external visual cues. Older adults made a differential use of visual feedback to modify movement trajectories, rather than to control the effects of neural noise. Handwriting movements of older adults resembled only to a limited extent those of patients with Parkinson's disease.

[1]  R. Katzman.,et al.  The neurology of aging , 1983 .

[2]  G. Stelmach,et al.  PRELIMINARY ASSESSMENT OF SPATIO-TEMPORAL CONTROL OF HANDWRITING IN PARKINSONIANS , 1989 .

[3]  P. E. Comalli.  Life-Span Changes in Visual Perception , 1970 .

[4]  J. Wann,et al.  Evidence against the Relative Invariance of Timing in Handwriting , 1990 .

[5]  A. Thomassen,et al.  Invariants in Handwriting: The Information Contained in a Motor Program , 1986 .

[6]  Denise C. Park,et al.  Handbook of the Psychology of Aging , 1979 .

[7]  J. Mattingley,et al.  Reduction in external cues and movement sequencing in Parkinson's disease. , 1994, Journal of neurology, neurosurgery, and psychiatry.

[8]  John L. Bradshaw,et al.  Abduction, adduction and hand differences in simple and serial movements , 1990, Neuropsychologia.

[9]  M. Hallett,et al.  A physiological mechanism of bradykinesia. , 1980, Brain : a journal of neurology.

[10]  P. Lewitt,et al.  Motor function in the normal aging population: treatment with levodopa. , 1985, Neurology.

[11]  G. Lorette,et al.  Advances in Handwriting and Drawing: a multidisciplinary approach , 1994 .

[12]  David E. Meyer,et al.  Speed—Accuracy Tradeoffs in Aimed Movements: Toward a Theory of Rapid Voluntary Action , 2018, Attention and Performance XIII.

[13]  S. Wapner,et al.  Field dependence-independence: Cognitive style across the life span. , 1991 .

[14]  L P Lipsitt,et al.  Life-span developmental psychology. , 1980, Annual review of psychology.

[15]  H. Kao,et al.  Graphonomics : contemporary research in handwriting , 1986 .

[16]  M Richards,et al.  Subtle extrapyramidal signs can predict the development of dementia in elderly individuals , 1993, Neurology.

[17]  J. Botwinick,et al.  The relation of writing speed to age and to the senile psychoses. , 1951, Journal of consulting psychology.

[18]  J. Birren,et al.  Aging, brain damage, and psychomotor slowing. , 1970, Psychological bulletin.

[19]  H. Bracha,et al.  Association of psychosis and movement disorders in the elderly. , 1988, The Psychiatric clinics of North America.

[20]  James B. Lohr,et al.  Movement Disorders: A Neuropsychiatric Approach , 1987 .

[21]  K P Offord,et al.  A short test of mental status: description and preliminary results. , 1987, Mayo Clinic proceedings.

[22]  Alan M. Wing,et al.  Development of graphic skills: Research perspectives and educational implications. , 1991 .

[23]  J. Mattingley,et al.  Age-related motor slowness: simply strategic? , 1994, Journal of gerontology.

[24]  Ching Y. Suen,et al.  Computer recognition and human production of handwriting , 1989 .

[25]  A. Welford.  Between bodily changes and performance: some possible reasons for slowing with age. , 1984, Experimental aging research.

[26]  G. Stelmach,et al.  Control of stroke size, peak acceleration, and stroke duration in Parkinsonian handwriting , 1991 .

[27]  J L Bradshaw,et al.  Characteristics of handwriting of patients with huntington's disease , 1994, Movement disorders : official journal of the Movement Disorder Society.

[28]  Normand Teasdale,et al.  What can indices of handwriting quality tell us about Parkinsonian handwriting , 1991 .