Two types of phonological training of children with reading disabilities were compared. Children trained in speech discrimination, letter-sound correspondence, and phonemic awareness (SP/LPA) and children trained only in letter-sound correspondence and phonemic awareness (n=35) improved in phonemic awareness, but only the SP/LPA group scored…

This study used a contrasting word task to evaluate the relationship between specific acoustic features of speech and perceptual judgments of word intelligibility of 16 adults with cerebral palsy-dysarthria. The scaled intelligibility was predicted with 62.6 percent accuracy by acoustic measures related to one consonant contrast and three vowel…

Variability in talker identity and speaking rate, commonly referred to as indexical variation, has demonstrable effects on the speed and accuracy of spoken word recognition. The present study examines the time course of indexical specificity effects to evaluate the hypothesis that such effects occur relatively late in the perceptual processing of…

Perceptual discrimination between speech sounds belonging to different phoneme categories is better than that between sounds falling within the same category. This property, known as ''categorical perception,'' is weaker in children affected by dyslexia. Categorical perception develops from the predispositions of newborns for discriminating all…

The validity of using phoneme monitoring techniques to measure syntactic processing in French was validated by two experiments. Significant differences in the reaction times of 80 French-speaking academic professionals to phonemes immediately following reversible subject relative clauses and those following object relative clauses demonstrate the…

A study investigated whether two speech measures (peak intraoral air pressure (IOP) and IOP duration) obtained during production of intervocalic stops would be altered by the presence or absence of a cochlear implant in five children (ages 7-10). The auditory condition affected peak IOP more than IOP duration. (Contains references.) (Author/CR)

Recent work on perceptual learning shows that listeners' phonemic representations dynamically adjust to reflect the speech they hear (Norris, McQueen, & Cutler, 2003). We investigate how the perceptual system makes such adjustments, and what (if anything) causes the representations to return to their pre-perceptual learning settings. Listeners are…

THIS DOCUMENT REPORTS THE PROGRESS FROM SEPTEMBER 1, 1961 TO FEBRUARY 1, 1962 OF AN EXPERIMENTAL PROGRAM IN SPEECH CONTROL. THE TOPICS DISCUSSED ARE--(1) PARAMETERS OF VOWEL PERCEPTION, (2) RELATIONS AMONG RESPONSE RATE, TOPOGRAPHY, AND SCHEDULES OF REINFORCEMENT--METHODS AND FINDINGS IN AN ANALYSIS OF THE VOCAL OPERANT, (3) FOREIGN ACCENT AND…

The author reports the results of a study based on an assumption that there might be an association of certain acoustic variables with the telling of lies. Twenty subjects were asked to perform two tasks, each involving four short oral responses, one of which was a lie. The responses were subjected to spectrographic analysis, and the task of the…

Two speech perception experiments were conducted with 12 normally hearing adults using a modified speech tracking procedure to determine the effects of controlling connected discourse materials and the effects of specific prompting techniques on tracking rate and subjects' responses. Results showed higher tracking rates for controlled materials.…

Forty stutterers and forty nonstutterers in Japan were tested for susceptibility to delayed auditory feedback while reading passages under amplified delay conditions. Susceptibility was higher for stutterers than nonstutterers and for nonstuttering men than nonstuttering women. Stutterers appeared to rely on auditory feedback for speech control…