Chapter 13 Neuromotor Control and Down Syndrome

Publisher Summary This chapter describes neuromotor control and Down syndrome (DS). Its neuropathology is well described and the physical characteristics are distinct. Although the effect of DS on motor control appears to parallel that observed in other similarly mentally retarded individuals, there are notable unique exceptions, particularly with respect to speed of responding. The results of the experiments indicate the involvement of both peripheral and central mechanisms in the slower reaction time observed in DS individuals. A distal-proximal pattern of movement initiation, however, suggests a complex relationship between central and peripheral mechanisms in DS individuals. In addition, the chapter also investigates whether practice improves motor performance in Down syndrome.

[1]  M. Marcell,et al.  Auditory and visual sequential memory of Down syndrome and nonretarded children. , 1982, American journal of mental deficiency.

[2]  G. Gottlieb,et al.  Strategies for the control of voluntary movements with one mechanical degree of freedom , 1989, Behavioral and Brain Sciences.

[3]  Stephen Monsell,et al.  The Latency and Duration of Rapid Movement Sequences: Comparisons of Speech and Typewriting , 1978 .

[4]  G. Berkson An analysis of reaction time in normal and mentally dificient young men. I. Duration threshold experiment. , 2008, Journal of mental deficiency research.

[5]  C Weathers,et al.  Effects of nutritional supplementation on IQ and certain other variables associated with Down syndrome. , 1983, American journal of mental deficiency.

[6]  D. Blanc,et al.  Static and Dynamic Balance Skills of Trainable Children with Down's Syndrome , 1977, Perceptual and motor skills.

[7]  A. Dalton,et al.  Clinical expression of Alzheimer's disease in Down's syndrome. , 1986, The Psychiatric clinics of North America.

[8]  J. Clausen Behavioral characteristics of Down syndrome subjects. , 1968, American journal of mental deficiency.

[9]  B. Hermelin,et al.  Kinaesthetic movement after-effects in children with Down's syndrome. , 2008, Journal of mental deficiency research.

[10]  D Elliott,et al.  Lateral asymmetries in finger-tapping by adolescents and young adults with Down syndrome. , 1986, American journal of mental deficiency.

[11]  P. Videbech,et al.  Mortality and life expectancy of Down's syndrome in Denmark. , 2008, Journal of mental deficiency research.

[12]  S. A. Wallace,et al.  Decision time and movement time as a function of response complexity in retarded persons. , 1978, American journal of mental deficiency.

[13]  O. Spreen,et al.  Two-plated tapping performance by Down's syndrome and non-Down's syndrome retardates. , 1979, Journal of child psychology and psychiatry, and allied disciplines.

[14]  M. Woollacott,et al.  Dynamics of postural control in the child with Down syndrome. , 1985, Physical therapy.

[15]  C D Frith,et al.  Specific motor disabilities in Down's syndrome. , 1974, Journal of child psychology and psychiatry, and allied disciplines.

[16]  J A Kelso,et al.  Analysis of "invariant characteristics" in the motor control of down's syndrome and normal subjects. , 1982, Journal of motor behavior.

[17]  C. Miezejeski Effect of white noise on the reaction time of mentally retarded subjects. , 1974, American journal of mental deficiency.

[18]  Training reaction and movement times of moderately and severely mentally retarded persons in aiming movements. , 1984, American journal of mental deficiency.

[19]  N. O’connor,et al.  Visual and stereognostic shape recognition in normal children and mongol and non-mongol imbeciles. , 1961, Journal of mental deficiency research.

[20]  S. Henderson,et al.  Motor skill development , 1985 .

[21]  R. Kerr,et al.  Motor skill acquisition by individuals with Down syndrome. , 1985, American journal of mental deficiency.

[22]  F. Anwar The role of sensory modality for the reproduction of shape by the severely retarded , 1983 .

[23]  Anson Jg,et al.  Effects of moment of inertia on simple reaction time. , 1989 .

[24]  B. Stratford Perception and perceptual-motor processes in children with Down's syndrome. , 1980, The Journal of psychology.

[25]  K. Newell,et al.  Training moderately and severely mentally retarded adults to improve reaction and movement times. , 1981, American journal of mental deficiency.

[26]  Walter E. Davis,et al.  Fractionated Reaction Times and Movement Times of Down Syndrome and Other Adults with Mental Retardation , 1991 .

[27]  E. Akuffo,et al.  The significance of Atlanto-axial instability in Down's syndrome. , 2008, Journal of mental deficiency research.

[28]  P. Vaccaro,et al.  Measurements of neuromuscular tone and strength in Down's syndrome children. , 2008, Journal of mental deficiency research.

[29]  R Bronks,et al.  Gait of children with Down syndrome. , 1980, Archives of physical medicine and rehabilitation.

[30]  P. Champion AN INVESTIGATION OF THE SENSORIMOTOR DEVELOPMENT OF DOWN’S SYNDROME INFANTS INVOLVED IN AN ECOLOGICALLY BASED EARLY INTERVENTION PROGRAMME: A LONGITUDINALT STUDY , 1987 .

[31]  F. M. Henry,et al.  Increased Response Latency for Complicated Movements and A “Memory Drum” Theory of Neuromotor Reaction , 1960 .

[32]  C. Dunst Stage transitioning in the sensorimotor development of Down's syndrome infants. , 2008, Journal of mental deficiency research.

[33]  S. Haley Sequence Of Development Of Postural Reactions By Infants With Down Syndrome , 1987, Developmental medicine and child neurology.

[34]  Richard B. Stein,et al.  What muscle variable(s) does the nervous system control in limb movements? , 1982, Behavioral and Brain Sciences.

[35]  D. Patterson The causes of Down syndrome. , 1987, Scientific American.

[36]  L. Leonard,et al.  Communicative and sensorimotor development of Down's syndrome children. , 1979, American journal of mental deficiency.

[37]  B. Stratford,et al.  Responses to music and movement in the development of children with Down's syndrome. , 2008, Journal of mental deficiency research.

[38]  U. Frith,et al.  The motor deficit in Down's syndrome children: a problem of timing? , 1981, Journal of child psychology and psychiatry, and allied disciplines.

[39]  B. Stratford Discrimination of size, form and order in mongol and other mentally handicapped children. , 2008, Journal of mental deficiency research.

[40]  L. Cohen Diet and cancer. , 1987, Scientific American.

[41]  Blake Hannaford,et al.  Time optimality, proprioception, and the triphasic EMG pattern , 1989, Behavioral and Brain Sciences.

[42]  D Elliott,et al.  Manual asymmetries in the performance of sequential movement by adolescents and adults with Down syndrome. , 1985, American journal of mental deficiency.

[43]  R Galambos,et al.  Neuropsychological correlates of information-processing by children with Down syndrome. , 1985, American journal of mental deficiency.

[44]  R Kerr,et al.  Down syndrome and extended practice of a complex motor task. , 1987, American journal of mental deficiency.

[45]  P. Mack,et al.  Reaction times of Down's syndrome and other mentally retarded individuals. , 1983 .

[46]  T. Fryers Survival in Down's syndrome. , 2008, Journal of mental deficiency research.

[47]  T. Nettelbeck,et al.  Effects of stimulus-response variables on the choice reaction time of mildly retarded adults. , 1976, American journal of mental deficiency.

[48]  Grimm Rj,et al.  Program disorders of movement. , 1983 .

[49]  R. Kerr,et al.  Directional probability information and Down syndrome: a training study. , 1988, American journal of mental retardation : AJMR.

[50]  R. Bronks,et al.  Walking patterns in Down's syndrome. , 2008, Journal of mental deficiency research.

[51]  J G Anson,et al.  Memory drum theory: alternative tests and explanations for the complexity effects on simple reaction time. , 1982, Journal of motor behavior.

[52]  A. Weiss,et al.  THE LOCUS OF REACTION TIME CHANGE WITH SET, MOTIVATION, AND AGE. , 1965, Journal of gerontology.

[53]  J H Abbs,et al.  DEFICITS FORCES THE PRODUCTION OF GRIP DOWN SYNDROME , 1988, Developmental medicine and child neurology.

[54]  H. J. Jerison,et al.  Auditory evoked brain potentials as a function of interstimulus interval in adults with Down's syndrome. , 1980, Audiology : official organ of the International Society of Audiology.

[55]  S. Henderson,et al.  Performance of Down syndrome and other retarded children on the Cratty Gross-Motor Test. , 1981, American journal of mental deficiency.

[56]  W. Davis,et al.  Muscle stiffness in down syndrome and other mentally handicapped subjects. , 1987, Journal of motor behavior.