For long periods there may be immobility with open staring eyes and catatonic posturing of the limbs.
No catatonic patient was able to give an account of the position in which he kept his limbs, thus remaining unaware of posturing.
As long as the pathohistological and molecular basis of catatonic syndromes is unknown, theories based mainly on functional considerations remain preliminary.
These are not catatonic patients, just street artists earning a living the hard way.
Moreover, it should be noted that, psychologically, lorazepam induced a "paradoxical" reaction in all catatonic patients.
Clinically, such a cortico-cortical spread of glutamatergic-mediated overexcitation may be reflected in the occurrence of catatonic syndrome in schizophrenia.
Neuropsychologically, catatonic patients showed deficits in visuo-spatial abilities correlating with attentional function.
Furthermore, these findings were obtained in patients with catatonic schizophrenia.
