| ataxic aphasia | A type of aphasia in which there is a deficit in speech production or language output, often accompanied by a deficit in communicating by writing, signs, etc. The patient is aware of his impairment. Synonym: anterior aphasia, ataxic aphasia, Broca's aphasia, expressive aphasia, nonfluent aphasia. (05 Mar 2000) |
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| ataxic | <medicine> Characterised by ataxy, that is, by great irregularity of functions or symptoms, or by a want of coordinating power in movements. Ataxic fever, malignant typhus fever. Origin: Cf. F. Ataxique. See Ataxia. Source: Websters Dictionary (01 Mar 1998) |
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| ataxic abasia | Difficulty in walking due to ataxia of the legs. (05 Mar 2000) |
| ataxic breathing | Completely irregular breathing pattern, with continually variable rate and depth of breathing; results from lesions in the respiratory centres in the brainstem, extending from the dorsomedial medulla caudally to the obex. Synonym: ataxic breathing, Biot's breathing, respiratory ataxia. (05 Mar 2000) |
| ataxic dysarthria | Dysarthria caused by cerebellar lesions. (05 Mar 2000) |
| ataxic gait | <neurology> Walking that is clumsy, uncoordinated. (16 Dec 1997) |
| ataxic paramyotonia | A disorder characterised by a tonic muscular spasm on attempted movement, associated with slight paresis and ataxia. (05 Mar 2000) |
| ataxic paraplegia | Progressive ataxia and paresis of the leg muscles due to sclerosis of the lateral and posterior funiculi of the spinal cord. (05 Mar 2000) |
| ataxic tremor | <neurology> A tremor which arises or which is intensified when a voluntary, coordinated movement is attempted. (18 Nov 1997) |
| acoustic aphasia | An impairment in comprehension of the auditory forms of language and communication, including the ability to write from dictation in the presence of normal hearing. Spontaneous speech, reading, and writing are not affected. Synonym: acoustic aphasia, word deafness. (05 Mar 2000) |
| acquired epileptic aphasia | <syndrome> Acquired epileptic aphasia. The typical history is that of a child whose development is normal for several years and then, either suddenly or in a fluctuating manner, loses comprehension of speech and the ability to use speech to communicate. The seizures are of no specific type, and are mostly mild and infrequent partial or atypical absences. (12 Dec 1998) |
| amnesic aphasia | An aphasia in which the principal deficit is difficulty in naming persons and objects seen, heard, or felt; due to lesions in various portions of the language area. Synonym: amnestic aphasia, amnesic aphasia, anomia, anomic aphasia. (05 Mar 2000) |
| anomic aphasia | An aphasia in which the principal deficit is difficulty in naming persons and objects seen, heard, or felt; due to lesions in various portions of the language area. Synonym: amnestic aphasia, amnesic aphasia, anomia, anomic aphasia. (05 Mar 2000) |
| anterior aphasia | A type of aphasia in which there is a deficit in speech production or language output, often accompanied by a deficit in communicating by writing, signs, etc. The patient is aware of his impairment. Synonym: anterior aphasia, ataxic aphasia, Broca's aphasia, expressive aphasia, nonfluent aphasia. (05 Mar 2000) |
| aphasia | <clinical sign, neurology> A defect or loss of the ability to speak or write, loss of ability to understand spoken or written language, due to injury or disease of the brain centres. Origin: Gr. Phasis = speech (16 Dec 1997) |
| aphasia, broca | Loss of ability to speak and write caused by damage to the motor association cortex in the frontal lobe (broca's area). The deficit in language production ranges from almost complete muteness to a slowed, deliberate speech constructed from very simple grammatical structures. Patients use only key words: for "the large gray cat" the patient with broca's aphasia may say "gray cat". (kandel et al., principles of neural science, 3d ed, p847) (12 Dec 1998) |