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Biomedical subjects

J Dérouesné

Publications and source records attributed to J Dérouesné.

4 recordsLinked to original sources

Lexical or orthographic agraphia.

A case of agraphia was studied in the framework of the information-processing approach and in relation to comparable studies on alexia. Three dissociations are of interest in this patient's picture: (a) in language production: impairment of writing without impairment of speech; (b) in writing: impairment of spelling without impairment of phoneme-grapheme conversion; (c) in visible language: impairment of writing without equivalent impairment of reading. The implications of these dissociations for any model of linguistic processes are discussed.

Aged↗

Phonological alexia: three dissociations.

Three dissociations were observed in a case of alexia: a disturbance of reading, without comparable disturbance of oral expression, oral comprehension, writing, or spelling aloud; a disturbance of the phonological reading process, without disturbance of the non-phonological reading process; a disturbance located at the level of the phonological stage, without disturbance of the perceptual and expressive stages. This pattern of results has been called phonological alexia.

Brain Neoplasms↗

Phonological processing in reading: data from alexia.

The reading of four subjects suffering from a phonological reading impairment as a result of a cerebral lesion was tested. A double dissociation observed in their results is strong evidence for the existence of two functionally independent kinds of phonological processing in reading--a graphemic and a phonetic one.

Adult↗

[Amnesiac aphasia. Study of 25 cases].

Twenty-five patients with "amnesic aphasia" were studied. The language difficulty is not related either to intellectual deficit, generalised memory disturbance or visual impairment but is a specific verbal memory defect. Amnesic aphasia also involves lack of perception of linguistic units which is caused by impairment of comprehension and erasure of the acoustico-mnesic traces of words. The responsible lesions are in the left temporal region. The authors maintain that, from the physio-pathological point of view, these lesions do not destroy the cortex and sub-cortex, as in focal necrosis, but cause cortical dysfunction selectively affecting the mnesic traces of words.

Adolescent↗