Prosody beyond pitch and emotion in speech and music: evidence from right hemisphere brain damage and congenital amusia

This dissertation examines the relationship of prosodic processing in language and music from a new perspective, considering acoustic features that have not been studied before in the framework of the parallel study of language and music. These features are argued to contribute to the effect of ‘expressiveness’ which is here defined as the combination of the acoustic features (variation in duration, pitch, loudness, and articulation) that results in aesthetic appreciation of the linguistic and the musical acoustic stream and which is distinct from pitch, emotional and pragmatic prosody as well as syntactic structure. The present investigation took a neuropsychological approach, comparing the performance of a right temporo-parietal stroke patient IB; a congenitally amusic individual, BZ; and 24 control participants with and without musical training. Apart from the main focus on the perception of ‘expressiveness’, additional aspects of language and music perception were studied. A new battery was designed that consisted of 8 tasks; ‘speech prosody detection’, ‘expressive speech prosody’, ‘expressive music prosody’, ‘emotional speech prosody’, ‘emotional music prosody, ‘speech pitch’, ‘speech rate’, and ‘music tempo’. These tasks addressed both theoretical and methodological issues in this comparative cognitive framework. IB’s performance on the expressive speech prosody task revealed a severe perceptual impairment, whereas his performance on the analogous music task examining ‘expressiveness’ was unimpaired. BZ also performed successfully on the same music task despite being characterised as congenital amusic by an earlier study. Musically untrained controls also had a successful performance. The data from IB suggest that speech and music stimuli encompassing similar features are not necessarily processed by the same mechanisms. These results can have further implications for the approach to the relationship of language and music within the study of cognitive deficits

Preserved appreciation of aesthetic elements of speech and music prosody in an amusic individual: A holistic approach

We present a follow-up study on the case of a Greek amusic adult, B.Z., whose impaired performance on scale, contour, interval, and meter was reported by Paraskevopoulos, Tsapkini, and Peretz in 2010, employing a culturally-tailored version of the Montreal Battery of Evaluation of Amusia. In the present study, we administered a novel set of perceptual judgement tasks designed to investigate the ability to appreciate holistic prosodic aspects of ‘expressiveness’ and emotion in phrase length music and speech stimuli. Our results show that, although diagnosed as a congenital amusic, B.Z. scored as well as healthy controls (N = 24) on judging ‘expressiveness’ and emotional prosody in both speech and music stimuli. These findings suggest that the ability to make perceptual judgements about such prosodic qualities may be preserved in individuals who demonstrate difficulties perceiving basic musical features such as melody or rhythm. B.Z.’s case yields new insights into amusia and the processing of speech and music prosody through a holistic approach. The employment of novel stimuli with relatively fewer non-naturalistic manipulations, as developed for this study, may be a useful tool for revealing unexplored aspects of music and speech cognition and offer the possibility to further the investigation of the perception of acoustic streams in more authentic auditory conditions

Music and language expressiveness: When emotional character does not suffice: the dimension of expressiveness in the cognitive processing of music and language

Book synopsis: In recent decades, the relationship between music, emotions, health and well-being has become a hot topic. Scientific research and new neuro-imaging technologies have provided extraordinary new insights into how music affects our brains and bodies, and researchers in fields ranging from psychology and music therapy to history and sociology have turned their attention to the question of how music relates to mind, body, feelings and health, generating a wealth of insights as well as new challenges. Yet this work is often divided by discipline and methodology, resulting in parallel, yet separate discourses. In this context, The Routledge Companion to Music, Mind and Well-being seeks to foster truly interdisciplinary approaches to key questions about the nature of musical experience and to demonstrate the importance of the conceptual and ideological frameworks underlying research in this field. Incorporating perspectives from musicology, history, psychology, neuroscience, music education, philosophy, sociology, linguistics and music therapy, this volume opens the way for a generative dialogue across both scientific and humanistic scholarship. The Companion is divided into two sections. The chapters in the first, historical section consider the varied ways in which music, the emotions, well-being and their interactions have been understood in the past, from Antiquity to the twentieth century, shedding light on the intellectual origins of debates that continue today. The chapters in the second, contemporary section offer a variety of current scientific perspectives on these topics and engage wider philosophical problems. The Companion ends with chapters that explore the practical application of music in healthcare, education and welfare, drawing on work on music as a social and ecological phenomenon. Contextualising contemporary scientific research on music within the history of ideas, this volume provides a unique overview of what it means to study music in relation to the mind and well-being

Beyond existing prosodic dichotomies: perception of aesthetic prosodic properties of speech and music in a right-hemisphere stroke patient

Speech and music processing impairments have been studied in parallel through the investigation of atomistic features such as pitch and duration and gestalt aspects of emotion. The present study explores another holistic dimension of speech and music prosody here termed ‘expressiveness.’ Novel tasks were designed to investigate whether such hitherto unexplored prosodic aspects of speech and music display processing differences. Five perceptual judgement tasks were employed, two of which involved music and speech stimuli manipulations of ‘expressiveness’. Effort was made to maintain more of their natural acoustic complexity, avoiding manipulations which derive music-like stimuli from speech tokens to artificially match items. We examined the performance of IB, an individual who had a right temporo-parietal lesion with frontal extension and compared his performance with 24 neurotypical controls on these prosodic judgements. IB’s performance was found to be comparable to that of neurotypical controls on a perceptual discrimination task of ‘expressive music prosody’, outperforming one-third of them, whereas he displayed severely impaired performance on ‘expressive speech prosody’. These results suggest that some prosodic elements may be perceived differently across the domains of language and music. Based on other inter-task comparisons, it is also proposed that the interplay among prosodic features such as loudness and duration might lead to different holistic processing between emotional prosody and ‘expressive’ prosodic qualities in the speech domain. Inevitably, the current work only provides preliminary evidence and future research with more patients sharing a lesion profile similar to that of IB is warranted