Research reports on the nature of speech, instrumentation for its investigation, and practical applications of research are provided in this status report covering the period of January 1 through March 31, 1983. The 16 reports deal with the following topics: (1) the influence of subcategorical mismatches on lexical access, (2) the Serbo-Croatian orthography, (3) grammatical priming effects between pronouns and inflected verb forms, (4) misreadings by beginning readers of Serbo-Croatian, (5) bialphabetism and word recognition, (6) orthographic and phonemic coding for word recognition in Hebrew, (7) stress and vowel duration effects on syllable recognition, (8) phonetic and auditory trading relations between acoustic cues in speech perception, (9) linguistic coding by deaf children in relation to beginning reading success, (10) determinants of spelling ability in deaf and hearing adults, (11) dynamical basis for action systems, (12) the space-time structure of human interlimb coordination, (13) diphthongs, (14) the relationship between pitch control and vowel articulation, (15) laryngeal vibrations, and (16) compensatory articulation in hearing impaired speakers. The report also contains a review of Pierre Delattre's "Studies in Comparative Phonetics." (FL)