OBJECTIVE To investigate the long-term efficacy of acoustically controlled auditory training in adults after tarumatic brain injury. METHODS A total of six audioogically normal individuals aged between 20 and 37 years were studied. They suffered severe traumatic brain injury with diffuse axional lesion and underwent an acoustically controlled auditory training program approximately one year b...

In this paper, we put forward an information theoretic definition of the redundancy that is observed across the sound inventories of the world’s languages. Through rigorous statistical analysis, we find that this redundancy is an invariant property of the consonant inventories. The statistical analysis further unfolds that the vowel inventories do not exhibit any such property, which in turn po...

Investigations have been made on the perceptual and acoustic properties of individual phonemes in continuous speech for different speaking rate. Fifteen short sentences spoken by four male speakers have been used as the test material. Each speaker has been asked to pronounce the sentences with three different rates: normal, first and slow. For perceptual experiment, individual CV-syllables have...

Two dichotic listening tests, one a verbal consonant-vowel identification task, the other a musical chord recognition task, were administered to 32 women at two points during the menstrual cycle, menses (when oestrogen is low) and the midluteal phase (when oestrogen is high), in a counterbalanced repeated measures design. The degree of asymmetry changed across the cycle for both syllables and m...

Smoking affects a widespread network of neuronal functions by altering the properties of acetylcholinergic transmission. Recent studies show that nicotine consumption affects ascending auditory pathways and alters auditory attention, particularly in men. Here we show that smoking affects language lateralization in a sex-specific way. We assessed brain asymmetries of 90 healthy, right-handed par...

Vowel duration has been an issue in the study of Civili. Although minimal pairs based on vowel duration can be established at both perceptual and physical level, vowel lengthening still occurs in the context of voiced consonants in the language. A comparison between a measured physical duration and an experimentally perceived duration confirms the phonemic distinctiveness of vowel length and in...

It is widely claimed that close vowels in Japanese are devoiced when they occur between voiceless consonants. In this paper, voiceless vowels are represented symbolically as [V-] and voiced vowels as [V+]. The patterns of linguopalatal contact during C[V-]C units and the corresponding C[V+]C units are examined using the method of electropalatography (EPG). Our results show that C[V-]C units and...

The well-studied phenomenon of vowel lengthening before tense sonorants in Modern Irish (Ó Siadhail 1989, Ó Siadhail and Wigger 1975, Ó Baoill 1979), exemplified in (1), is now well understood as a compensatory process (see for example Ní Chiosain 1991). Tense or long sonorants (L, L', R', N, N', m) trigger vowel lengthening and/or diphthongization. What is not clear about this phenomenon is th...

Japanese vowel devoicing was investigated from the viewpoint of perception, an approach which has not been taken in any previous studies. It appears in some dialects of Japanese, including Tokyo dialect. Three tests, a vowel preference test, a same/different test, and an inter-stimulus interval effect test were performed. In the vowel preference tests, 46.3% of devoiced vowel dialects speakers ...