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At least 91 records · Page 5Linked to original sources

Mirror phenomena in language and nonverbal activities--a case report.

A case is described of a 38-year-old, left-handed female who demonstrated mirror phenomena for both language and non-motor, nonverbal material. She mirror-wrote with her left hand with normal right-hand writing. Mirror-reading as well as object and spatial reversals were revealed. These data are consistent with bilateral representation of visual engrams, with one hemisphere containing a mirror-reversed representation of the other.

Adult↗

[Moyamoya syndrome. Diagnosis with angio-MRI].

We present a case of Moya-Moya syndrome in a 28-year-old female patient with an unusual debut in the form of mirror-image writing. The patient was studied by CAT, conventional cerebral angiography, MRI and angio-MRI. The results obtained show a very good correlation between the images of conventional angiography and those obtained by angio-MRI. Angio-MRI requires no contrast, is noninvasive and rapid, promising to be a first class alternative in the diagnosis and follow-up of Moya-Moya syndrome.

Adult↗

Mirror-reversal phenomena in the cutaneous perception and writing of children.

When a letter is drawn on the forehead, it is perceived cutaneously as a mirror reversal of the experimenter-defined stimulus. An analogous mirror-reversal phenomenon is found in motor behaviour; eg, writing on the downward-facing horizontal surface of a table. We examined these mirror-reversal phenomena in tasks, performed by 4-year-old and 8-year-old children, involving cutaneous perception and motor-production. The children's tendencies toward mirror reversal in the two tasks varied with the orientation and position of the surface, but were similar to those of sighted and blind adult subjects. In addition, mirror reversal was independent of the left-right indifference often observed in young children in writing or visual-matching tasks. The implications of these findings are discussed in the context of a body schema used to guide sensorimotor functions.

Attention↗

[Neurological and neuropsychological characteristics of the functional turn in the critical preschool period].

A total of 124 preschool children aged 5 to 6 years attending kindergartens or placed into children's homes were subjected to neurologic and neuropsychologic examinations. The alterations revealed were inconclusive and of various kinds. On the one hand, they were characterized by an increase by 5 to 6 years of age in the frequency of the minimal signs of pyramidal and cerebellar failure and of the phenomenon of mirror movements and writing. On the other hand, those alterations were marked by improved readings of the higher psychic functions. On electroneuromyography the interage differences were confirmed by a decrease of the motosensory ratio in children aged 5 years as compared to those aged 4 and 6 years. The alterations described were given the name of the "functional turn" which as the most important stage in the critical preschool period includes both progressive evolutionary jump and functional unbalance associated with rearrangement of the functions of the body or a system.

Child↗

Mirror speaking after neurosurgery. A case history.

The case is reported of a 23 year old patient, who at the age of nine underwent neurosurgery for an angiomatous meningioma of the right temporal lobe, and immediately afterwards realized he was able to speak backwards nearly as well as normally. Presently, the patient still retains this ability which is associated with analogous mirror reading and writing. Neurological examination and EEG, CT data as well as the scores of some neuropsychological tests are added.

Adult↗

How to incorporate and evaluate writing skills in animal science and dairy science courses.

For more than a century, teachers in all content areas have expressed concern about the writing skills of their students. Historically, the burden for teaching writing has fallen to English teachers, many of whom feel inadequately trained in rhetoric. Recently, faculty in many content areas, encouraged by the theories of composition specialists such as Stephen Tchudi, James Britton, Donald Murray, Ken McCrorie, and others, have begun to incorporate more writing into their disciplines, and today on many college campuses administrators strongly encourage and support training in writing across the curriculum. However, faculty in content areas other than English often feel they do not have the time or the knowledge to stress writing in their classroom. Current research in teaching writing effectively addresses both these issues. First, faculty in the college of agriculture can eliminate their students' resistance to writing by modeling and by consistently integrating writing into the course. Research suggests that content-area teachers may be more qualified than anyone to evaluate the effectiveness of their students' writing. The content-area teacher understands the material and can best determine how clearly the student has communicated an idea. Evaluating students' writing need not be overwhelming. Content-area teachers who are committed to incorporating more writing into their classes can use a variety of approaches in assessing their students' writing, many of which require limited grading. Furthermore, content-area teachers should remember that writing is as much a process as it is a product and daily writing exercises, which are generally short and often ungraded, can be integrated routinely into the curriculum without placing an unreasonable strain on the professor's time. A benefit to using daily writing is that it can help students master content as well as communicate effectively. After the content-area professor has developed a practice of using daily writing, he/she can then generate assignments that focus on the discipline. Assignments should be content-specific and authentic. This means the writing topics come from the discipline and the documents written mirror those students will read and write in their professions. Ultimately, the task of teaching students to communicate effectively must be shared by teachers across the curriculum.

Animal Husbandry↗

Mirror reversal by blind subjects in cutaneous perception and motor production of letters and numbers.

A letter drawn on the forehead is often perceived as its mirror reversal. Similarly, people produce mirror reversals when asked to write a letter on the underside of a table at which they are sitting. We varied the orientation and position of the stimulated or inscribed surface, and found several examples of these two mirror-reversal phenomena in blind subjects (who had no, or very little, visual experience), as well as in sighted subjects. Furthermore, the mirror-reversal rate of the two groups of subjects as a function of orientation and position of the surface was highly correlated. Thus, the mirror-reversal phenomena should be attributed to a nonvisual, spatial cognitive scheme that is perhaps shared by sighted and blind subjects.

Adult↗

Functional asymmetries in the quality of handwriting movements: a kinematic analysis.

Writing hand preference is a prominent functional asymmetry, but biomechanical factors may also contribute to any kinematic differences in the quality of handwriting movements performed by either hand. Eighteen dextral participants used a noninking pen with their right or left hand to write cursive letter ls, inverted ls, and their mirror images (to control for biomechanical differences) on a graphics tablet. Kinematic analysis of the scaling, consistency, efficiency, and shape of writing stroke trajectories revealed functional asymmetries between hands. The right hand was faster and produced more efficient strokes, which were of more consistent length, duration, and peak velocity. Differences between hands do not simply reflect biomechanical factors; therefore, the documentation of any functional asymmetries may allow their subsequent use as markers of underlying pathology in conditions such as schizophrenia.

Adolescent↗

[Mirror movements. Preliminary therapeutic study].

BACKGROUND: Mirror movements are a specific type of synkinesis. The pathogenesis is unknown. Three types have been identified: 1) a hereditary form, 2) a form associated with other neurological diseases, 3) a sporadic form, as is this case. CASE REPORT: A girl was born at term after cesarean section for fetal anoxia. Psychomotor development seemed normal, but mirror movements of fingers, hands, wrists and forearms were noticed when she was 8-9 months old. There were no other neurological manifestations and the imaging techniques were normal. Rehabilitation was begun when she was 20 months old. The girl is now 4 1/2 years old and writes, draws and cuts up normally. CONCLUSIONS: Mirror movements that are not associated with other neurological disorders usually remain unchanged and can be a professional handicap for adults. Prolonged rehabilitation offers a good functional prognosis.

Dominance, Cerebral↗

Prospective clinical study of writer's cramp.

Sixty-five consecutive patients with writer's cramp were studied prospectively to evaluate clinical and demographic features, the number of writing hours per day at dystonia onset, and the existence of trigger events. Assessment of writing and drawing was done on a standardized test using categorical scales. The importance of subjective handicap and pain, of postural and action tremor, the abnormal features of hand grip and the occurrence of mirror dystonia (dystonia occurring in the dominant hand when writing with the other hand) were studied. Thirty-two patients had simple writer's cramp, whereas the others had complex writer's cramp with several activities other than writing involved. No significant differences were seen in age of onset, legibility, pain, and handicap in these two groups. Seven patients had a family history of focal dystonia and six of them had a complex form of writer's cramp. Mirror dystonia was seen in 29 patients and in some it appeared useful to distinguish dystonic movements from secondary compensatory strategies.

Adult↗

Characteristics of writing disorders in Italian dyslexic children.

OBJECTIVE: This study characterizes the spelling impairment of Italian dyslexic children and evaluates the relationship between reading and spelling disorders. BACKGROUND: Developmental spelling deficits are much less investigated than reading deficits. Based on the dual-model approach, studies of English-speaking subjects describe a surface and a phonological dysgraphia. In languages with shallow orthographies, there is evidence of surface and phonological dyslexia, but no data are available for dysgraphia. METHODS: Eighteen dyslexic children were studied. Writing was investigated by means of a spelling test that included regular words with one-sound-to-one-letter correspondence, regular words requiring syllabic conversion rules, words with unpredictable transcription, and nonwords with one-sound-to-one-letter correspondence. The dyslexics' spelling errors were compared with those of 30 age-matched proficient readers. RESULTS: The dyslexic participants were very slow readers. Their errors were compatible with the hypothesis of a prevalent use of the sublexical reading procedure (i.e., surface dyslexia). They were also generally impaired with respect to the control children in all subsections of the spelling test. However, multivariate and single case analyses as well as qualitative analysis of errors indicated that their major problem was writing words with unpredictable transcription. This failure was consistent with the view of prevalent subword level processing in writing. CONCLUSION: The pattern of the spelling impairment mirrors the children's reading impairment, with most children suffering from surface dysgraphia.

Adolescent↗