Ideokinetic Apraxia

IDEOKINETIC APRAXIA, a subtype, according to Liepmann, of ideomotor apraxia. In ideomotor apraxia, despite preservation of the general plan of action, the patient is unable to carry it out, because he does not know how to perform each of the partial acts that constitute this action. In some cases, these partial acts are not performed because the psychomotor centers themselves are impaired—microkinetic apraxia. In other cases, it is a matter of 'disruption of associative connections between intellectual and psychomotor centers' (Dejerine)—ideokinetic apraxia. It is characterized by preservation of movements performed automatically and loss of movements performed intentionally. The patient can cope well with a known action if it proceeds mechanically, without the involvement of his attention, and cannot cope with exactly the same action if it must be performed on command, with intention, etc.