Pause loci in stuttered and normal speech

The mainstream of research comparing types of disfluency in stuttered and normal speech has typically omitted consideration of pause. In contrast, psycholinguisticresearch addressed to disfluency in normal speech alone has revealed the salience of pause in the study of fluency/disfluency. The research reported here, which focused on the antecedents and sequelae of filled pauses, revealed substantial differences in pattern of pause occurrence between stuttered and normal speech samples obtained from 20 matched subjects. The results are discussed in reference to relevant findings from the research on pause in normal speech.     

The use of a portable delayed auditory feedback unit in stuttering therapy

A portable on-the-body delayed auditory feedback was used in the establishment and transfer modes of fluent speech in a stutterer while he was on the Monterey Fluency Program. The performance of the client was compared with a “standard” population of stutterers. The portable DAF was comparable to the larger DAF in establishment and superior in transfer with minimal behavioral and technical problems. Use and potential value of the portable DAF in transfer and maintenance phases of therapy are discussed.     

Hearing your voice through bone and air: Implications for explanations of stuttering behavior from studies of normal speakers

Cherry and Sayers (1956) reported that stutterers have problems dealing with sound fed back to the ears through bone. Their experimental support for this claim is reexamined. It is shown that their technique does not produce the same bone-conducted feedback as produced by the speaker while speaking. Their results are reinterpreted as showing that stutterers have problems when speaking in the presence of low frequency sound because of its masking properties, rather than because the sound originates in bone-conducted feedback.     

The onset of stuttering following drug overdose

Recently, some attention has been focused on acquired stuttering, disfluencies that begin in adulthood. The nature of acquired stuttering differs in several respects from developmental stuttering. A case of acquired stuttering following drug overdose is presented and contrasted with previously reported cases. The case is noteworthy in that, while many characteristics of acquired stuttering are evidenced, several symptoms associated with developmental stuttering are also observed. The findings are discussed in terms of a possible link between developmental and acquired forms of stuttering.     

Rate changes in the speech of stutterers after therapy

The fluent speaking rate of nine adult male stutterers was compared before and after stuttering intervention. The subjects, ranging in age from 18 to 37 yr (mean, 25 yr, 3 mo), exhibited mild to severe stuttering prior to treatment. The only rate reduction strategy taught to subjects during intervention was to slow the first phoneme or syllable of sentences spoken. In addition, however, subjects significantly reduced their overall rate as determined by measurements made of their fluent speech at the middle of sentences, as well as overall sentence durations (excepting the first word of utterances). The data from this investigation are interpreted relative to the facilitation/simplification hypothesis.     

Multivariate analysis of the interaction of person,situation and response variables in situation-specific interpersonal behavior

This study attempted to use multivariate statistical methodology to empirically derive and define person, situation and response variables which interact in determining situation-specific behavior of college students, and to clarify the nature of the interaction of those variables. A variant of principal components analysis was used to derive reliable dimensions of persons and situations underlying situation-specific self-reported response. These dimensions appeared to correspond to clusters of grossly similar situations. An attempt to define the derived dimensions using measures based on Murray needs did not provide clear-cut, quantitative definitions. The solution derived using the principal components procedure was found to have validity in terms of predicting overt behavior in a contrived situation. Results were interpreted as being supportive of the principal components technique as a method for deriving determinants of situation-specific behavior, but the need for new technology for defining those dimensions was commented upon.     

Learned helplessness and IQ differences

Two groups of adult Ss differing in verbal IQ were compared in a learned helplessness experiment involving cognitive tasks and non-contingent rewards. The mean IQs for the two groups were 131 and 117. As predicted, the higher IQ Ss performed better overall and showed greater awareness of the response-outcome contingency. Their test-task performance was also more affected by the contingency manipulation although this occured only with success feedback. Implications of the results for cognitive accounts of human helplessness are discussed.     

Treatment outcome in personality disorder: The effect of social,psychological and behavioural variables

The study followed-up 245 patients referred to the Henderson Hospital (194 admitted for treatment and 51 not admitted) and for whom information had been collected on their social background and certain psychological variables allowing a classification and typology of personality disorder to be worked out. The study indicates that the therapeutic community treatment is effective with selected individuals showing the antisocial behaviour associated with such disorder. In particular this treatment is of benefit to the offenders with only one conviction and who are able to persevere with treatment for a period of 6 months for treatment to be maximally effective. The variation of psychological types within the broad category of personality disorder was demonstrated and this has a bearing on the outcome of treatment, the extrapunitive neurotic being of poorest prognosis with or without treatment. Yet even in this group, therapeutic community treatment can be effective.     

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.     

Variability in the initiation of articulatory movements in the speech of stutterers and normal speakers

This study was designed to investigate the differences between stutterers and normal speakers in phonatory and articulatory timing during the initiation of fluent utterances of monosyllabic words. Electromyographic recordings of four articulatory muscles and recordings of glottal vibrations were made of repetitive utterances of a series of monosyllabic words by 15 stutterers and 17 nonstutterers. These data were analyzed in terms of average interval times between voice onset and onset of EMG activity and between onset of EMG activity in each articulator and in terms of the intrasubject variability of these durational measures. Results showed that there were no significant differences between stutterers and nonstutterers in average interval times and that stutterers, in general, were significantly more variable in their speech onset timing. Findings are discussed in terms of recent hypotheses concerning the role of timing disturbances as the main source of speech disruption in stutterers.