Besides primary motor system dysfunction, the sources of this variability may include conditions such as apraxia, depression, anosodiaphoria
, and learned nonuse and are beyond the purview of this phase II clinical trial.
It is often accompanied by various 'related disorders': anosognosia, anosodiaphoria, non-belonging, visual-field defects, and gaze paresis.
Anosognosia (denial or lack of awareness of a hemiparesis), anosodiaphoria (indifference to perceived weakness) and non-belonging (a feeling that an affected limb did not belong to the individual) were assessed using the method described by Cutting |7, 19~.
Patients with a left hemisphere stroke appeared more difficult to assess for visual neglect, tactile extinction, allaesthesia, anosognosia, anosodiaphoria and non-belonging, probably owing to dysphasia.
Neglect phenomena appeared to be more frequently associated with right hemisphere damage, as were anosognosia and anosodiaphoria.