No abstract

Eighty-five patients with idiopathic spasmodic torticollis were compared with an equally chronic group of 49 cervical spondylosis sufferers in terms of body concept, depression, and disability. The torticollis patients were significantly more depressed and disabled and had a more negative body concept. Depression had different determinants in the two groups. Extent of disfigurement was a major predictor of depression in torticollis. Neuroticism accounted for the greatest proportion of the variance of depression in cervical spondylosis.

We studied two human subjects with total deafferentation of one upper limb secondary to traumatic multiple cervical root avulsions. Both subjects developed a phantom limb and underwent elective amputation of the paralyzed, deafferentated limb. Psychophysical study revealed in each subject an area of skin in the pectoral region ipsilateral to the amputation where vibrotactile stimulation (VS) elicited referred sensations (RS) in the phantom limb. Positron emission tomography was then used to measure regional cerebral blood flow changes during VS of the pectoral region ipsilateral to the amputation with RS and during VS of a homologous part of the pectoral region adjacent to the intact arm without RS. A voxel-based correlation analysis was subsequently used to study functional connectivity. VS of the pectoral region adjacent to the intact arm was associated with activation of the dorsal part of the contralateral primary somatosensory cortex (S1) in a position consistent with the S1 trunk area. In contrast, VS of the pectoral region ipsilateral to the amputation with RS was associated with activation of the contralateral S1 that extended from the level of the trunk representation ventrally over distances of 20 and 12 mm, respectively, in the two subjects. The area of S1 activated during VS of the digits in a normal control subject was coextensive with the ventral S1 region abnormally activated during VS of the ectopic phantom representation in the two amputees, suggesting that the deafferented digit or hand/arm area had been activated by sensory input from the pectoral region. Correlation analysis showed an abnormal pattern of intrinsic connectivity within the deafferented S1 hand/arm area of both amputees. In one subject, the deafferented S1 was functionally connected with 3 times as many S1 voxels as the normally afferented S1. This abnormal functional connectivity extended in both the rostrocaudal and ventrodorsal dimensions. The results demonstrate that sensory input delivered to the axial body surface may gain access to the S1 hand/arm area in some humans who have suffered extensive deafferentation of this area. The findings are consistent with the hypothesis that deafferentation of an area of S1 may result in activation of previously dormant inputs from body surfaces represented in immediately adjacent parts of S1. The results also provide evidence that changes in functional connectivity between these adjacent areas of the cortex play a role in the somatotopic reorganization.

Changes in depression, disability, body concept, and severity of head deviation were examined in a sample of 67 patients with idiopathic torticollis, who were reassessed 2 years after taking part in an initial study (before the use of botulinum toxin injections). Over the follow-up period, torticollis was unchanged in 41·8%, had improved in 26·9% and deteriorated in 31·3% of cases. The overall levels of depression, disability, and body concept across the two occasions did not change. Changes in the clinical severity of torticollis over the follow-up period had a significant effect on psychological adjustment. Those whose torticollis improved were less depressed and disabled and a had a more positive body concept compared to the patients whose torticollis had worsened. Measures of illness severity had stronger associations with measures of psychological adjustment at follow-up than at the time of initial study. Longer duration of torticollis was associated with larger increases in depression and disability during the 2 years of follow-up. The results suggest that the experience of depression, disability, and negative body concept in a proportion of torticollis sufferers is a reaction to the neurological illness. A minority of the patients who remain chronically depressed are primary candidates for therapeutic intervention aiming at improving their adjustment to the illness.

Forty patients with Parkinson's disease and 24 patients with dystonia took part in a study aiming to assess the value of access to and contact with a nurse practitioner over a 6 month period. Patients in each group were randomly allocated to “intervention” or “control” groups, which were matched on important variables. All patients completed a set of questionnaires relating to psychosocial function at two time points separated by 6 months. In the intervening period, those allocated to the “intervention” group received two home visits and five telephone calls from the nurse practitioner. This contact was not provided to the “control” group. The nurse practitioner had a major impact on the provision of information and the facilitation of referral to other health-care agencies. The results of an independent assessment indicated that the patients in the “intervention” programme had found access to and contact with a nurse practitioner of great value. In contrast, the results of the questionnaire assessment did not reveal any statistically significant change in psychosocial functioning from the first to the second assessment for either the “intervention” or “control” groups. The lack of change in the questionnaire measures is discussed in terms of possible sampling bias and the duration of intervention and follow-up. Recommendations are made for future studies, and for the possible provision of clinical services.