Biomedical subjects

I Yoshimura

Publications and source records attributed to I Yoshimura.

42 records · Page 3Linked to original sources

PubMed1979

Comprehension skill levels and prevalence of maladaptive behaviors in autistic and mentally retarded children. A statistical study.

A statistical study on the comparison of the comprehension skill levels between the group with and the group without each maladaptive behavior of nine items was done for autistic and mentally retarded children. Results indicated that the group of the autistic children with hyperactivity or withdrawal had slightly, not significantly, lower comprehension skill levels than the group of those without each of these maladaptive behaviors. On the other hand, the correlation between the prevalence of hyperactivity or withdrawal and lower comprehension skill levels was seen more clearly, with statistically significant differences, rather among the mentally retarded children.

Adolescent↗

PubMed1979

Speech skill levels and prevalence of maladaptive behaviors in autistic and mentally retarded children: a statistical study.

Forty-seven autistic and 128 mentally retarded children, ages 6 to 14, from a special school were assessed in terms of nine maladaptive behaviors and speech skill levels. The results indicated that the group of the mentally retarded children with withdrawal had significantly lower speech skill levels than the group of those without withdrawal, and the group of the autistic children with self-injury had significantly lower speech skill levels than the group of those without self-injury.

Adolescent↗

PubMed1979

Effects of age on communication skill levels and prevalence of maladaptive behaviors in autistic and mentally retarded children.

This study investigated the effect of age on communication and maladaptive behavior in autistic and mentally retarded children. Forty-seven autistic and 128 mentally retarded children in a special school served as subjects. The cross-sectional method was used to compare junior and senior groups, and ratings on communication skills and maladaptive behaviors were obtained from teachers. We found that the skills of comprehension and conversation in autistic children improved significantly with age, and speech improved somewhat. In spite of this improvement in communication skills, maladaptive behaviors in the autistic children other than hyperactivity did not change significantly with age. Withdrawal improved significantly with age in the mentally retarded children but not in the autistic children.

Adolescent↗

PubMed1979

[Neuropsychological studies of two subjects after the transection of the splenium of the corpus callosum. (Part 2. The auditory recognition by the dichotic listening test) (author's transl)].

We made the neuropsychological auditory studies of two right-handed subjects who had undergone the transection of the splenium of the corpus callosum for the pineal operation (the teratoma by the histopathological examination). The transection grades were 2.0 cm and 2.5 cm. The truncus and splenium of the second subject were flat by the compression of the tumor. We examined these subjects by the some audiolocigal methods. 1. Pure tone audiometry. 2. Fixed frequency Békésy audiometry. 3. SISI test (short increment sensitivity index test). 4. Speech audiometry. 5. Distorted speech test (filtered speech test). 6. Binaural fusion test. 7. Dichotic listening test. The tasks used for the dichotic listening test were following. Different digits (one pair, three pairs), different words (from two to four syllables) and different vowels and consonants were presented simultaneously to the two ears by means of a dual-channel tape recorder with stereophonic earphone. The result shows that the first subject (whose section of the spelenium was 2.0 cm) shows a slight but not significant superiority on the right ear to the one pair digits and words (p less than 0.1), and the second subject (whose section of the splenium was 2.5 cm and whose splenium and truncus of the corpus callusum were flatten by the compression of the tumor) shows a significant superiority on the right ear to the one pair digits, words, three pairs digits and vowels (p less than 0.05). But there was no definitive abnormalities at the pure tone audiometry, the fixed frequency Békésy audiometry, SISI test, distorted speech test and binaural fusion test of two cases. The result shows that the commissure fibres of the auditory perception of the speech of two hemispheres connect through from splenium to the truncus of the corpus callosum.

Brain Neoplasms↗

PubMed1979

[Neuropsychological studies of two subjects after the transection of the splenium of the corpus callosum (Part 3. The tactile recognition) (author's transl)].

We made the neuropsychological tactile studies of two right-handed subjects who had undergone the transection of the splenium of the corpus callosum for the pineal operation (the teratoma by the histopathological examination). The transaction grade was 2.0 cm and 2.5 cm. In this paper we examined the tactile recognition neuropsychologically: A. Superficial sensory modalities: light touch, pain perception, temperature discriminations. B. Deep sensory modalities: vibration perception, position sense, motor sense. C. Perception of material: rough or smooth, heavy or light, hard or soft. D. Perception of size: appreciation of shape in two dimentions: circle, triangle, square, cross, rhomb, appreciation of form in three dimensions: ball, column, cone, trignonal prism, cube. E. Identification of simple objects: eraser, pencil, hair pencil, fountainpen, telephone, glasses. F. Identification of japanese letters: Kana (phonetic symbols) and Kanji (essentially nonphonetic logographic symbols representing lexical morphemes). According to the papers of Akelaitis, Van Vleuten, Goldstein, the subjects after the transection of the corpus callosum could name the objects and the card board letters placed in their right hands with their eyes closed, but they could not name in their left hand by contrast. In our subjects, the identification of simple objects and the identification of japanese letters were complete good. But they had the neuropsychological visual and auditive disorders. The result shows that the commissure fibres of the identification of the simple objects and letters of two hemispheres does not connect through the splenium of the corpus callosum.

Agnosia↗

PubMed1978

Prevalence of maladaptive behavior in retarded children as a function of IQ and age.

One hundred and twenty-eight mentally retarded children, ages 6 to 14, from a special school were assessed by teachers in terms of nine maladaptive behaviors. The results indicated that the prevalence of some maladaptive behaviors changed as a function of IQ and age, and that there were splits of such changes as IQ-dependent and as age-dependent by maladaptive behavior.

Adolescent↗