B. 1. Bailon, O. Roussel, M. Boucart, M. Krystkowiak, P. Godefroy et al., Psychomotor slowing in mild cognitive impairment, Alzheimer's disease and lewy body dementia: mechanisms and diagnostic value. Dementia and geriatric cognitive disorders, pp.388-96, 2010.

O. Godefroy, S. Spagnolo, M. Roussel, and M. Boucart, Stroke and Action Slowing: Mechanisms, Determinants and Prognosis Value, Cerebrovascular Diseases, vol.29, issue.5, pp.508-522, 2010.
DOI : 10.1159/000297968

S. Stoquart-elsankari, C. Bottin, M. Roussel-pieronne, and O. Godefroy, Motor and cognitive slowing in multiple sclerosis: an attentional deficit? Clinical neurology and neurosurgery, pp.226-258, 2010.

O. Godefroy, M. Roussel, P. Despretz, V. Quaglino, and M. Boucart, Age-related slowing: perceptuomotor, decision, or attention decline? Experimental aging research, pp.169-89, 2010.
DOI : 10.1080/03610731003613615

C. Bloxham, T. Mindel, and C. Frith, Initiation and execution of predictable and unpredictable movements in Parkinson's disease. Brain : a journal of neurology, pp.371-84, 1984.

G. Stelmach, C. Worringham, and E. Strand, MOVEMENT PREPARATION IN PARKINSON'S DISEASE, Brain, vol.109, issue.6, pp.1179-94, 1986.
DOI : 10.1093/brain/109.6.1179

R. Benecke, J. Rothwell, J. Dick, B. Day, and C. Marsden, Disturbance of sequential movements in patients with Parkinson's disease. Brain : a journal of neurology, pp.361-79, 1987.

S. Pullman, R. Watts, J. Juncos, T. Chase, and J. Sanes, Dopaminergic effects on simple and choice reaction time performance in Parkinson's disease, Neurology, vol.38, issue.2, pp.249-54, 1988.
DOI : 10.1212/WNL.38.2.249

R. Camicioli, M. Wieler, C. De-frias, and W. Martin, Early, untreated Parkinson's disease patients show reaction time variability. Neuroscience letters, pp.77-80, 2008.
DOI : 10.1016/j.neulet.2008.06.004

M. Jahanshahi, R. Brown, and C. Marsden, A comparative study of simple and choice reaction time in Parkinson's, Huntington's and cerebellar disease., Journal of Neurology, Neurosurgery & Psychiatry, vol.56, issue.11, pp.1169-77, 1993.
DOI : 10.1136/jnnp.56.11.1169

F. Girotti, R. Marano, P. Soliveri, G. Geminiani, and G. Scigliano, Relationship between motor and cognitive disorders in Huntington's disease, Journal of Neurology, vol.25, issue.8, pp.454-461, 1988.
DOI : 10.1007/BF00314246

M. Posner and S. Petersen, The attention system of the human brain. Annual review of neuroscience, pp.25-42, 1990.

D. Norman, . St, J. Bower, D. Maraganore, S. Mcdonnell et al., Attention to Action, Journal of clinical epidemiology, vol.551, issue.151, pp.25-3171, 1982.
DOI : 10.1007/978-1-4757-0629-1_1

D. Muslimovic, B. Post, J. Speelman, and B. Schmand, Cognitive profile of patients with newly diagnosed Parkinson disease, Neurology, vol.65, issue.8, pp.1239-1284, 2005.
DOI : 10.1212/01.wnl.0000180516.69442.95

K. Van-spaendonck, H. Berger, M. Horstink, E. Buytenhuijs, and A. Cools, Executive functions and disease characteristics in Parkinson's disease. Neuropsychologia, pp.617-643, 1996.

K. Dujardin, C. Tard, A. Duhamel, A. Delval, C. Moreau et al., The pattern of attentional deficits in Parkinson's disease. Parkinsonism & related disorders Cognitive impairment in Parkinson's disease without dementia. Movement disorders : official journal of the Movement Disorder Society Cools R. Dopaminergic modulation of cognitive function-implications for L-DOPA treatment in Parkinson's disease. Neuroscience and biobehavioral reviews, Oct, vol.192530, issue.201, pp.300-52136, 2006.

R. Brown and C. Marsden, Internal versus external cues and the control of attention in Parkinson's disease. Brain : a journal of neurology, pp.323-368, 1988.

J. Downes, A. Roberts, B. Sahakian, J. Evenden, R. Morris et al., Impaired extradimensional shift performance in medicated and unmedicated Parkinson's disease: evidence for a specific attentional dysfunction, Neuropsychologia, vol.27, pp.11-121329, 1989.

M. Sharpe, Distractibility in early Parkinson's disease. Cortex; a journal devoted to the study of the nervous system and behavior, pp.239-285, 1990.

N. Jordan, H. Sagar, and J. Cooper, Cognitive components of reaction time in Parkinson's disease., Journal of Neurology, Neurosurgery & Psychiatry, vol.55, issue.8, pp.658-64, 1992.
DOI : 10.1136/jnnp.55.8.658

E. Evarts, H. Teravainen, and D. Calne, Reaction time in Parkinson's disease. Brain : a journal of neurology, pp.167-86, 1981.

J. Harrison, L. Henderson, and C. Kennard, Abnormal refractoriness in patients with Parkinson's disease after brief withdrawal of levodopa treatment., Journal of Neurology, Neurosurgery & Psychiatry, vol.59, issue.5, pp.499-506, 1995.
DOI : 10.1136/jnnp.59.5.499

R. Rafal, M. Posner, J. Walker, and F. Friedrich, Cognition and the basal ganglia. Separating mental and motor components of performance in Parkinson's disease, Brain : a journal of neurology, 1984.

J. Michely, M. Barbe, F. Hoffstaedter, L. Timmermann, S. Eickhoff et al., Differential effects of dopaminergic medication on basic motor performance and executive functions in Parkinson's disease, Neuropsychologia, vol.50, issue.10, pp.2506-2520, 2012.
DOI : 10.1016/j.neuropsychologia.2012.06.023

S. Starkstein, M. Esteguy, M. Berthier, H. Garcia, and R. Leiguarda, Evoked potentials, reaction time and cognitive performance in on and off phases of Parkinson's disease., Journal of Neurology, Neurosurgery & Psychiatry, vol.52, issue.3, pp.338-378, 1989.
DOI : 10.1136/jnnp.52.3.338

J. Ogden, . Gj, S. Corkin, S. Mcdowell, and J. Harris, Deficits on visuospatial tests involving forward planning in highfunctioning Parkinsonians Irrelevant peripheral visual stimuli impair manual reaction times in Parkinson's disease. Vision research, Neuropsychiatry, Neuropsychology and Behavioral Neurology, vol.337, issue.3124, pp.125-393549, 1990.

A. Johnson, Q. Almeida, C. Stough, J. Thompson, R. Singarayer et al., Visual inspection time in Parkinson???s disease: deficits in early stages of cognitive processing, Neuropsychologia, vol.42, issue.5, pp.577-83, 2004.
DOI : 10.1016/j.neuropsychologia.2003.10.011

B. Shipley, I. Deary, J. Tan, G. Christie, and J. Starr, Efficiency of temporal order discrimination as an indicator of bradyphrenia in Parkinson???s disease: the inspection time loop task, Neuropsychologia, vol.40, issue.8, pp.1488-93, 2002.
DOI : 10.1016/S0028-3932(01)00195-6

D. Giaschi, A. Lang, and D. Regan, Reversible dissociation of sensitivity to dynamic stimuli in Parkinson's disease: Is magnocellular function essential to reading motion-defined letters?, Vision Research, vol.37, issue.24, pp.3531-3535, 1997.
DOI : 10.1016/S0042-6989(96)00316-1

J. Phillips, T. Schiffter, M. Nicholls, J. Bradshaw, R. Iansek et al., Does old age or Parkinson's disease cause bradyphrenia? The journals of gerontology Series A, Biological sciences and medical sciences, pp.404-413, 1999.

C. Malapani, B. Pillon, B. Dubois, Y. Agid, R. Brown et al., Impaired simultaneous cognitive task performance in Parkinson's disease: a dopamine-related dysfunction Dual task performance and processing resources in normal subjects and patients with Parkinson's disease. Brain : a journal of neurology A central executive deficit in patients with Parkinson's disease Dual task interference during gait in people with Parkinson disease: effects of motor versus cognitive secondary tasks. Physical therapy Parkinsonism: onset, progression and mortality, Neurology. Feb Feb Journal of neurology Hoehn MM, vol.441145782, issue.40, pp.319-26215, 1967.

M. Kalafat and J. Poitrenaud, Standardisation et étalonnage français du « Mini Mental State » (MMS) version GRECO, Neuropsychology review, vol.13, issue.2, pp.209-245, 2003.

S. Fahn, R. Elton, S. Fahn, C. Marsden, D. Calne et al., Unified Parkinson's Disease Rating Scale (UPDRS) Recent developments in Parkinson's disease. Florahm Park Neuropsychological and clinical heterogeneity of cognitive impairment and dementia in patients with Parkinson's disease. The Lancet Neurology, NJ: Macmillan Health Care Information, vol.3, pp.153-164, 1987.

J. Cockrell and . Fm, Mini-Mental State Examination (MMSE), Psychopharmacol Bull, vol.24, issue.4, pp.689-92, 1988.

S. Mattis, Mental status examination for organic mental syndrome in the elderly patients Geriatric Psychiatry: A handbook for psychiatrists and primary care physicians 1976, pp.77-121

E. De-renzi and P. Faglioni, Normative data and screening power of a shortened version of the Token Test. Cortex; a journal devoted to the study of the nervous system and behavior, pp.41-50, 1978.

G. Deloche, D. Cardebat, B. Doyon, M. Puel, P. Goulet et al., Test de dénomination orale d'images. Les editions du centre de Psychologie Appliquée 1989. 48 Formal and semantic lexical evocation in normal subjects. Performance and dynamics of production as a function of sex, age and educational level, Acta neurologica Belgica, vol.90, issue.4, pp.207-224, 1990.

M. Albert, A simple test of visual neglect, Neurology, vol.23, issue.6, pp.658-64, 1973.
DOI : 10.1212/WNL.23.6.658

A. Agniel, T. Joanette, B. Doyon, C. Duchein, and H. Buschke, Protocole Montréal Toulouse d'évaluation des gnosies visuelles Isbergues, France: L'ortho-Édition. 1992. 51. Rey A. Test de copie d'une figure complexe Genuine memory deficits in dementia, Developmental Neuropsychology, vol.3, pp.13-36, 1987.

M. Van-der-linden, F. Coyette, J. Poitrenaud, M. Kalafat, F. Calacis et al., L'épreuve de rappel libre/rappel indicé à 16 items, Van Der Linden M

R. Reitan, Validity of trail making tests as an indicator of organic brain injury. Baltimore 55. Nelson HE. A modified card sorting test sensitive to frontal lobe defects. Cortex; a journal devoted to the study of the nervous system and behavior, pp.313-337, 1976.

J. Stroop and J. , Studies of interference in serial verbal reactions., Journal of Experimental Psychology, vol.18, issue.6, pp.643-662, 1935.
DOI : 10.1037/h0054651

S. Montgomery and M. Asberg, A new depression scale designed to be sensitive to change, The British Journal of Psychiatry, vol.134, issue.4, pp.382-389, 1979.
DOI : 10.1192/bjp.134.4.382

O. Godefroy, . Ap, P. Robert, M. Roussel, O. Godefroy et al., Dysexecutive syndrome: diagnostic criteria and validation study SRT lengthening: role of an alertness deficit in frontal damaged patients, Neuropsychologia, vol.60, issue.40, pp.2234-2241, 2002.

O. Godefroy and M. Rousseaux, Binary choice in patients with prefrontal or posterior brain damage. A relative judgement theory analysis, Neuropsychologia, vol.34, issue.10, pp.1029-1038, 1996.
DOI : 10.1016/0028-3932(96)00012-7

B. Ballanger, R. Gil, M. Audiffren, and M. Desmurget, Perceptual factors contribute to akinesia in Parkinson's disease. Experimental brain research, pp.245-53, 2007.

J. Cooper, H. Sagar, P. Tidswell, and N. Jordan, Slowed central processing in simple and go/no-go reaction time tasks in Parkinson's disease. Brain : a journal of neurology, pp.517-546, 1994.