Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “HANDWRITING”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,297 records · Page 72Linked to original sources
PubMed1980

Subject variables and cerebral organization for language.

The present study investigated the usefulness of a variety of subject variables that have been proposed as having predictive value for determining cerebral organization for language. To accomplish this, a total of 373 subjects (117 left-handers and 256 right-handers) were given 240 trials of a consonant-vowel dichotic listening task to assess direction and degree of language lateralization. Each subject was also classified on the basis of eight subject variables (handedness, strength of handedness, familial sinistrality, writing hand posture, sex, sighting dominance, preferred footedness, and overall laterality). The results of the study indicated that left hemisphere language processing is very pervasive and that most of the subject variables examined were not very useful predictors of language lateralization. In addition, surprisingly, footedness and not handedness was the single best predictor of cerebral organization for language.

Adolescent↗
PubMed1984

Hand posture in writing: possible artifacts from self report.

Seven hundred forty undergraduate students were asked to report the hand posture they used during writing and the presence or absence of left-handedness in the immediate family. Drawings were provided of prototypical "normal" and "inverted" posture and subjects were also given the option of reporting that their hand posture was somewhere between the two illustrated positions. The incidence of reporting "between" was 17% for left-handers and 46% for right-handers. These results suggest that experimenters should exercise caution when categorizing subjects on the basis of self-report forms that include only two choices: normal posture and inverted posture.

Adult↗
PubMed1986

Theoretical implications of the hyperlexia syndrome: two new Italian cases.

Two Italian girls (ages 12.5 and 18.6) are reported in whom excellent reading and writing skills have developed against a background of severe mental retardation. The cases have poor short-term memory, very low verbal and performance IQs, and fail many traditional Piagetian tasks at the operational stage. They similarly fail many "metalinguistic" tasks that have been regarded as prerequisites for the development of adequate reading and writing skills. Despite these failures, the girls can accurately read aloud words, non-words, sentences, and texts. However, their comprehension of such material was poor, and consistent with the overall low level of cognitive functioning. What the cases do show, very clearly, is that reading and writing qua visual-to-auditory and auditory-to-visual transcoding tasks can develop independently of many other basic cognitive systems.

Adolescent↗
PubMed1986

Handedness is not a unidimensional trait.

Most theories about the inheritance of hand preference assume that handedness is a unidimensional trait which forms a continuous distribution. This paper demonstrates that sampling a wide range of manual activities reveals dimensions of hand preference that are independent. 180 right handed and 110 left handed adults indicated their hand preference for 55 activities according to a five point scale. A Varimax Factor Analysis revealed four factors which accounted for 80 percent of the variance. Factor 3 was of special interest because it represented behaviors which rely upon the axial musculature and involve strength more than dexterity. Hand preference for items on this factor were less laterally biased than on factors which included such fine motor behaviors as writing or drawing. These results suggest that manual preference is governed by more than one neural system and that these systems may be independently lateralized.

Adolescent↗
PubMed1987

Selective Kana agraphia: a case report.

We present a Japanese man with selective Kana (phonogram) agraphia as a sequela of two cerebral infarctions in a part of the left angular gyrus and its adjoining posterior superior temporal gyrus and the left corona radiata. The agraphia of this patient showed the following features: (1) His writing difficulty was greater for Kana than for Kanji (ideogram) when a word was polysyllabic. (2) Kana errors consisted of perseveration and substitution with another letter, resulting in jargon agraphia. (3) This jargon agraphia often contained a correct number of letters for a target word. Based on these findings, we speculate that the basic defect of this agraphia lies in the process of converting an acoustic word image into a Kana motor grapheme sequence.

Agraphia↗
PubMed1989

Commissurotomy subjects show lateralized difference between manual and oral responding.

This study investigates the influence of the mode of response on the right ear advantage in verbal dichotic testing. Four complete commissurotomy subjects were tested on an ascending digits tape with oral response and manual response by the dominant hand with the volume equal and raised in each ear. Oral response elicited right ear report in all tests under all conditions at all levels of task difficulty. Pointing and writing responses elicited left ear report when the volume was raised in the left ear and the number of digits to report was small. Right ear performance increased and left ear performance decreased as the number of digits to process increased. Results indicate that response modes differ significantly in the degree to which they engage the left hemisphere or to which they suppress the ipsilateral pathways within the left hemisphere. Use of an oral response may obscure the lateralized contribution of the cognitive activity under investigation.

Adult↗
PubMed1989

When a patient can write but not copy: report of a single case.

A dissociation between spared spontaneous and impaired writing on copy is described in a patient with severe limb and constructional apraxia. Visual-perceptual abilities were normal as well as oral language and reading. The findings are discussed in the light of an information processing model of writing.

Aged↗