One of a series of semiannual reports, this publication contains 12 articles which report the status and progress of studies on the nature of speech, instrumentation for its investigation, and practical applications. The titles of the articles and their authors are as follows: "Coarticulatory Organization for Lip-rounding in Turkish and…

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…

Discusses two auditory comprehension studies that investigated the role of focus, as conveyed by a pitch accent, in the comprehension of relative clauses preceded by a complex noun phrase. Findings include focus attracts modifiers, and pitch accents for new phrases differ acoustically from pitch accents for contrastive phrases. (46 references)…

Reviews phoneme monitoring studies from 1969 to 1996 and groups them in terms of issues addressed with the task, including the contribution of the lexicon to speech perception, processing complexity, attention, contribution of prosodic information, and the basic unit of speech perception. Identifies and highlights task demands and artifactual…

This study examined phonological processing in 30 less-skilled third-grade readers, 30 younger children at the same reading level, and 30 more-skilled age mates. The less-skilled readers had significantly lower accuracy scores than both age mates and younger normal readers on word span, word-pair repetition, tongue twister, and, especially,…

Previous reports have demonstrated that the comprehension of sentences describing motion in a particular direction (toward, away, up, or down) is affected by concurrently viewing a stimulus that depicts motion in the same or opposite direction. We report 3 experiments that extend our understanding of the relation between perception and language…

Sequences of notes contain several different types of pitch cues, including both absolute and relative pitch information. What factors determine which of these cues are used when learning about tone sequences? Previous research suggests that infants tend to preferentially process absolute pitch patterns in continuous tone sequences, while other…

Summarizing research activities from January 1977 to September 1978, this is the fourth annual report of research on speech processing conducted in the Department of Psychology at Indiana University. The report includes extended manuscripts, short reports, progress reports, and information on instrumentation developments and software support. The…

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…

Recall performance of 22 first-grade and third-grade children who failed memory portions of a speech-language-memory screen was examined using digit and consonant-vowel (CV) stimulus sets. Data indicate children failing the screening battery differed quantitatively, rather than qualitatively, from children passing the screening batter. (Author)

To determine whether the auditory difficulties of learning disabled (LD) children are characterized by deficiencies in processing especially rapid or especially slow speech, the effect of various rates of compressed and expanded sentences on the repetition performance of 20 LD and normal children (ages 8 to 11 years) was investigated. (Author/DLS)

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)

Argues that evolution of the phonological systems of natural languages and the typology of distinctive features is based on perceptual discontinuities of the auditory system. It is suggested that neonates rely on these innate sensitivities for acquisition of sound systems and that some phonological variation in early child phonology results from…

Children (ages 6-7 and ages 8-9) and adults participated in real-word and nonword lexical decision tasks and an auditory-vocal reaction time task. Response times on all tasks decreased with age. However, age-related differences on the real-word lexical decision task disappeared when differences in auditory-vocal reaction times were taken into…

Exploration of the role of listening comprehension in facilitating second-language learning includes discussion of the auditory perception of language, listening disadvantages for second-language learners, the need to concentrate on lexical knowledge rather than ear training, minimum word knowledge requirements, and lexical ignorance as a major…