Soft tissue anatomy of the tongue and floor of the mouth: An ultrasound demonstration

Ultrasound technology has not been used extensively in the study of normal and abnormal oral physiology and speech. Features such as soft tissue detail, real-time motion display, and subject safety make ultrasound ideal for imaging the tongue and the floor of the mouth. This study demonstrates visualization of the muscles of the tongue and floor of the mouth for a normal subject using ultrasound imaging. By employing submandibular transducer placement of real-time sector scanners, tongue anatomy and motion were continuously visualized in sagittal or coronal planes. In addition to the entire tongue surface, much of the intrinsic anatomy was identified including: the genioglossus, geniohyoid, mylohyoid, and digastric muscles; fascial boundaries such as the median fibrous septum, floor intermuscular septum, and paramedian septums; and the hyoid bone. A tongue excised from a human cadaver was scanned using ultrasound and dissected to confirm the anatomy seen in the live tongue. Tongue surface shape and configuration of the intrinsic tissue structures were observed and compared for the phonemes /k/, /u/, and /i/. Anatomical landmarks in the resting and speaking tongue are discussed as well as applications in the fields of speech science and speech pathology.     

Classification of spelling errors and their relationship to reading ability, sex, grade placement, and intelligence

A simple scheme for the classification of spelling errors was applied to the errors of four groups of children, totaling 483 subjects, in grades 3 to 12. The subjects in two of the groups, Group I and Group IV, consisted of individuals who attended special schools for children with dyslexia or specific reading disability (SRD). Group II included school age siblings of subjects in Group I, and Group III included subjects drawn from regular school programs. It was shown that (a) type of spelling error is independent of sex, (b) there are no consistent effects of IQ or grade level on type of spelling error, and (c) disabled readers as a group are more likely to produce dysphonetic errors than are normal readers. Although the type of spelling error produced by children who had a spelling disability only was shown to be similar to that of normal readers and to differ from that of disabled readers as a group, disabled readers were shown to differ among themselves, lending strong support to the use of spelling error type as a characteristic for identifying subgroups.     

Structure of intelligence in intellectually precocious children and in their parents

Students representing the top 0.03% of their age group in intellectual ability, who were identified by the Study of Mathematically Precocious Youth (Benbow & Stanley, 1980), were tested along with their parents using a battery of specifically designed cognitive tests. These highly intelligent children had less intelligent, but yet quite bright parents. Vernon's (1961) model of intelligence best fits our results. His following two factors explained most of the variance in the performance of the students and parents: verbal-educational and practical-spatial-mechanical. Moreover, there was potential evidence for a general factor. Among the children, who were mostly past puberty, age related to development of verbal abilities, but not spatial or mechanical abilities. Sex differences favoring the males were found on the spatial ability and mechanical comprehension tests.     

Predictive value and psychological meaning of vocational aspirations

The psychological meaning and predictive value of a person's vocational aspirations were examined by applying Holland's typology to the vocational aspirations of high school juniors (N = 1005), college juniors (N = 692), employed adults (N = 140), and a second sample of college students studied over a one-year interval (N = 624). The aspirational data were obtained from the Daydreams section of the Self-Directed Search (Holland, 1972). Categorical and correlational analyses show that a person's retrospective vocational aspirations have coherence and yield efficient predictions of subsequently expressed choice. In addition, the degree of coherence or similarity among a person's vocational aspirations provides a potentially useful index of a person's decision-making ability.     

The virtues of the SDS and its associated typology: A second response to Prediger and Hanson

The author reviews the evidence for the beneficial effects of the Self-Directed Search (SDS), indicates that Hanson and Prediger have misinterpreted the theory, that their evidence is misleading, and that other evidence indicates that males and females of the same type are similar. The virtues of raw scores are summarized. The author recalls some methodological adventures and outlines where we are now in this controversy about the measurement of interests for special groups.     

Cognitive correlates of map-reading ability

The performance of ROTC students on the Relief Format Assessment Test (RFAT) was regressed on psychometric variables and a measure of hemisphericity. Contrary to expectation, it was found that measures of visual-spatial ability and hemisphericity were not good predictors of map-reading ability, whereas the Extended Range Vocabulary and Mathematical Aptitude Tests were significant predictors. Factor analysis of the RFAT indicated the existence of two factors, one tentatively associated with terrain analysis and the other with altitude estimation. Mathematical Aptitude along with Form Board predicted performance on the altitude estimation factor, whereas Extended Range Vocabulary along with Similarities and Institution predicted performance on the terrain analysis factor. These results suggest that at least for our subjects, the solution of map-reading problems is primarily dependent upon verbal-analytic and to a lesser extent upon visual-spatial ability.     

The effects of constant vs varied reinforcer presentation on responding by autistic children

The autistic child's characteristic lack of motivation can create considerable problems for educators. Since there is some evidence that stimulus variation may influence motivation, this study was designed to assess the differential effects of constant vs varied reinforcer presentation. Specifically, two questions were addressed: (1) Would there be any differences in the total number of responses emitted by autistic children when the reinforcer was held constant as opposed to varied; and (2) would there be any differences in the interresponse interval for constant vs varied reinforcer presentation? The results clearly demonstrated that the children in this investigation made significantly more and faster responses when the reinforcer presentation was varied as opposed to constant. The results are discussed in terms of the effects of stimulus variation on satiation and implications for teachers of autistic children.     

Linguistic analysis of a bilingual stutterer

The ultimate test of the adequacy of linguistic models of fluency breakdown is the degree to which they may account for patterns of dysfluency in the speech of a stutterer who is fluent in more than one language. We present the case of an adult bilingual stutterer (Spanish-English), whose spontaneous language in both Spanish and English was structurally analyzed to assess the relationships of phonological and syntactic structure to the frequency and location of fluency breakdown. Our findings suggest that syntax is probably a greater determinant of stuttered moments than is phonology. Additionally, similarities and differences between English and Spanish sentence structure were associated with similarities and differences in the loci of dysfluencies across the two languages. The need for crosslinguistic research utilizing monolingual and bilingual speakers of languages other than English is emphasized.     

Age and outstanding occupational achievement: Lehman revisited

The findings of H. C. Lehman's (1953, Age and achievement, Princeton, NJ: Princeton Univ. Press) study of age and outstanding occupational achievement were reviewed along with the explanations which have been put forth to account for the finding that major contributions are most likely to occur in young adulthood. Subsequently, an alternative explanation was proposed based on the central developmental tasks facing individuals in young adulthood and middle age. More specifically, it is argued, in accordance with N. Haan (1981, in R. M. Lerner & N. A. Busch-Rossnagel (Eds.), Individuals as producers of their own development: A life span perspective, New York, Academic Press), that young adults employ an accommodating adaptive style, and that the cognitive and behavioral concomitants of this style may increase the likelihood of major contributions. It is also noted that the realistic, controlling adaptive style of the middle aged would tend to facilitate minor contributions. Finally, the broader literature was reviewed in relation to these hypotheses, and certain practical implications of this reinterpretation were laid out.