Reaction and Movement Times in Individuals with Chronic Traumatic Brain Injury with Good Motor Recovery

Incoccia, Chiara; Formisano, Rita; Muscato, Paola; Reali, Giada; Zoccolotti, Pierluigi

doi:10.1016/s0010-9452(08)70924-9

Cited by 35 publications

(30 citation statements)

References 12 publications

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“…As for movement times, TBI patients were delayed but showed an increase in time with increasing distance similar to that of control patients. These data confirm our previous observations on a similar patient population (Incoccia et al, 2004).…”

Section: Discussionsupporting

confidence: 93%

“…Shum and colleagues found that chronic TBI patients were selectively impaired in response selection and execution, that is, in movement times (Shum et al, 1990 and1994). Recently, we examined the influence of stimulus complexity on reaction times and of distance on the movement times of severe chronic TBI patients with good clinical recovery (Incoccia et al, 2004). Confirming previous evidence (e.g., Miller, 1970;van Zomeren and Deelman, 1994), TBI patients were slow in discriminating targets from non-targets (go/no-go paradigm) but not in responding to simple unstructured visual targets.…”

Section: Introduction Ementioning

confidence: 98%

“…In this case, we expected activation in M1 and in S1 but limited or no activity prior to the movement in SMA and PMA. Based on our previous findings (Incoccia et al, 2004), we expected the TBI patients to be impaired in the preparatory phases of the MRCPs and less (or not) in the components concomitant to the movement. In the patients' sample we also replicated our previous observations on reaction and movement times as a function of target distance.…”

Section: Introduction Ementioning

confidence: 99%

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Abnormal Motor Preparation in Severe Traumatic Brain Injury with Good Recovery

Russo

Incoccia

Formisano

et al. 2005

Journal of Neurotrauma

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Movement-related cortical potentials (MRCPs) were examined in seven patients with severe traumatic brain injury (TBI) and 12 matched control subjects. All patients had clinically established good recovery by the time of testing. Flexion movements of the index finger of the left or right hand were recorded in two (alternating and repetitive) self-paced conditions and in one externally triggered condition. In control subjects, the bereitschaftspotential (BP) component of MRCP was detected approximately 2000 msec prior to movement onset in the self-paced conditions and was larger and earlier in the alternating compared to the repetitive condition. The BP component was absent in the externally triggered condition. In TBI patients, the BP was greatly reduced and no difference between the alternating-repetitive conditions was detected; in contrast, only small differences were present in the controls for the negative slope (NS) and MP components and no difference for the reafferent positivity (RAP) component. A dipole analysis indicated the supplementary motor area and the premotor area as the likely generators of BP and NS components, respectively. Gradientrecalled echo magnetic resonance imaging allowed the detection of a number of small hypointense lesions primarily located in the frontal lobes, as in diffuse axonal injury. This pattern of results indicates a selective deficit in motor preparation and a relatively spared pattern of activation during and following movement in these patients. Imaging data appear generally consistent with the pattern of MRCPs observed in the patient group. Implications of these results for the problem of slowness in TBI patients are discussed.

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Section: Discussionsupporting

confidence: 93%

Section: Introduction Ementioning

confidence: 98%

Section: Introduction Ementioning

confidence: 99%

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Abnormal Motor Preparation in Severe Traumatic Brain Injury with Good Recovery

Russo

Incoccia

Formisano

et al. 2005

Journal of Neurotrauma

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“…Various investigations have shown impairment in finger tapping 1 year after mild to moderate TBI [89]; impairment in integrative gross motor and speeded fine motor skills 16 months after severe TBI [90]; deficits in fine motor skills, speed, and coordination 8 months after TBI [91]; subclinical bradykinesia with impaired complex and simple reaction time 1 year after TBI [92]; residual motor programming deficits in severe chronic TBI despite clinically good motor recovery [93]; and selective deficit in motor preparation in severe TBI with good clinical recovery [94]. The grooved pegboard (GPB) test is a fine motor test included in many standard comprehensive neuropsychological batteries after TBI.…”

Section: Fine Motor Deficitsmentioning

confidence: 99%

Minimizing the effect of TBI-related physical sequelae on vocational return

McNamee

Walker²,

Cifu³

et al. 2009

JRRD

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Abstract-This article evaluated the common physical sequelae that affect return to work (RTW) after traumatic brain injury (TBI). We performed a Medline search and evaluation of current TBI rehabilitation texts. The information presented is a combination of published literature and clinical guidelines. The limitations faced by many patients with TBI can best be overcome through clever job search, job redesign, and community linkages with business and industry that are willing to partner in helping the patient with TBI regain employment. The physician plays a key role in communicating suggestions to the vocational specialist. The comorbidities described represent challenges to successful RTW. These problems are recurrent, long-term, and clearly affect job procurement, nature of job, level of required support, and likelihood of job retention. Conversely, these challenges should not be viewed as impenetrable obstacles. With appropriate supports such as compensatory strategies, job coaching, assistive technology, medical management, and job restructuring, successful RTW is viable option. Physicians must focus on employment outcomes in real jobs and not settle for volunteer work, sheltered work, or assessment and planning. Individuals should be placed in real work for real pay. Through close collaboration between the survivor of TBI, the physician, the vocational specialist, and community resources, successful employment for survivors of TBI is possible and must be prescribed a high value.

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“…Gray et al showed subclinical bradykinesia with impaired complex and simple reaction time in a sample of 24 persons 1 year after TBI [20]. Incoccia et al showed residual motor programming deficits in 18 individuals with severe chronic TBI in the presence of good clinically assessed motor recovery [21]. Di Russo et al, measuring movement-related cortical potentials with electroencephalogram, showed selective deficit in motor preparation in seven subjects with severe TBI and clinically established good recovery by the time of testing [22].…”

Section: Introductionmentioning

confidence: 99%

Motor impairment after severe traumatic brain injury: A longitudinal multicenter study

Walker

Pickett²

2007

JRRD

198

141

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Abstract-Neuromotor impairment is a common sequela of severe traumatic brain injury (TBI) but has been understudied relative to neurocognitive outcomes. This multicenter cohort study describes the longitudinal course of neurological examination-based motor abnormalities after severe TBI. Subjects were enrolled from the four lead Department of Veterans Affairs and Defense and Veterans Brain Injury Center sites. The study cohort consisted of 102 consecutive patients (active duty, veteran, or military dependent) with severe TBI who consented during acute rehabilitation for data collection and completed all follow-up evaluations. Paresis, ataxia, and postural instability measures showed a pattern of improvement over time, with the greatest improvement occurring between the inpatient (baseline) and 6-month follow-up assessments. Involuntary movement disorders were rare at all time points. Two years following acute rehabilitation, more than one-third of subjects continued to display a neuromotor abnormality on basic neurological examination. Persistence of tandem gait abnormality was particularly common.

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Reaction and Movement Times in Individuals with Chronic Traumatic Brain Injury with Good Motor Recovery

Cited by 35 publications

References 12 publications

Abnormal Motor Preparation in Severe Traumatic Brain Injury with Good Recovery

Abnormal Motor Preparation in Severe Traumatic Brain Injury with Good Recovery

Minimizing the effect of TBI-related physical sequelae on vocational return

Motor impairment after severe traumatic brain injury: A longitudinal multicenter study

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