Research is reported which examined the effect of various factors on the frequency of phonological responses. Phonemic order and location of clusters within a syllable affected fusion. Initial stop-liquid clusters fused readily; final liquid-stop clusters rarely fused. Some subjects fused on most or all trials; others fused less frequently.…

Determined how proficiently children identify gender of adults and children, based on whispered and phonated vowels. Compares performance with adult listeners. Both groups obtained simiiar average rates of accuracy when identifying gender based on preadolescent children's phonated vowels. Adults were more accurate when perceiving whispered vowels.…

Describes an experiment designed to verify the notion that many slips of the tongue go undetected and demonstrates that phonemic slips of the tongue are perceived less often than nonphonemic slips of the tongue. Findings also indicate that the latter disturb perception of segments in the rest of the sentence more than the former. (Author/MES)

Investigates the principles underlying the perception of vowel stimuli. The results support Chistovich's claim. When judging the distance between synthetic vowel stimuli, speakers refer to the phonemic structure of their native language. They determine the phonemes closest to the stimuli and then compare the phonemes and not the stimuli…

Describes studies of voice onset time in Spanish and an acoustic feature termed presence versus absence of an abrupt consonant onset. It is suggested that this feature may be used by the Spanish listener in making a perceptual distinction between voiced and voiceless stop consonants in multiple environments. (Author/KM)

An experiment is reported in which 25 listeners were presented with pairs of stimuli of equal duration, but differing in fundamental frequency, and were asked to decide which of the two stimuli was longer. (Author/RM)

Electromyographic experiments were performed indicating that durational differences between vowels that precede voiced consonants and those that precede voiceless ones are due to a sustention of muscular activity in articulation, which occurs only with vowels preceding voiced consonants. (SC)

Reports on research into perceptuo-motor control in a converse experimental situation, in which subjects were required to utter a repetitive sequence of syllables immediately prior to identifying syllables presented auditorily. Results support the notion of a unitary mechanism that processes information about certain consonant features during…

Describes an experiment designed to determine the effect of missing syntactic cues on listeners' comprehension of grammatical sentences heard through noise. Comparison between sentences containing function word deletions and sentences with a more clearly displayed syntactic structure suggests that deletion of minor cues hinders comprehension under…

Assesses the relationship between production deficits and speech perception abilities. A categorical perception paradigm was administered to a group of communication disordered children and to a matched control group. Group results are tentatively interpreted as showing a moderate perceptual deficit in the communication disordered children of this…

Acoustic properties of retroflex consonants were determined and interpreted in terms of acoustic theory. The results are considered in relation to a quantal theory, auditory property detectors, and theoretical notions of markedness. (Author/TL)

An experiment tests conjectures that right ear advantage (REA) has an auditory origin in competition or interference between acoustically similar stimuli and that feature-sharing effect (FSE) has its origin in assignment of features of phonetically similar stimuli. No effect on the REA for acoustic similarity, and a clear effect of acoustic…

The selective tuning of feature detectors sensitive to the acoustic information relevant to the assignment of distinctive phonetic feature values was investigated with a contingent adaptation paradigm. (Author/RM)

Describes an investigation comparing visual and auditory clues effect on estimates of speakers' heights and weights, to determine if voice alone conveys as much information as visual clues. The results indicate that the differences between estimates based on photographs and those based on speech recordings are, on the average, very small.…

Investigates the phenomenon that subjects speaking under exposure to masking noise demonstrate decreases in oral sensory function and temporal reorganization of the articulatory pattern. The study attempts to measure the effects of this phenomenon under varying durations of exposure to auditory masking. (Author/NCR)