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Multisensory and sensorimotor interactions in speech perception

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889195480 Year: Pages: 263 DOI: 10.3389/978-2-88919-548-0 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Psychology
Added to DOAB on : 2016-01-19 14:05:46
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Speech is multisensory since it is perceived through several senses. Audition is the most important one as speech is mostly heard. The role of vision has long been acknowledged since many articulatory gestures can be seen on the talker's face. Sometimes speech can even be felt by touching the face. The best-known multisensory illusion is the McGurk effect, where incongruent visual articulation changes the auditory percept. The interest in the McGurk effect arises from a major general question in multisensory research: How is information from different senses combined? Despite decades of research, a conclusive explanation for the illusion remains elusive. This is a good demonstration of the challenges in the study of multisensory integration. Speech is special in many ways. It is the main means of human communication, and a manifestation of a unique language system. It is a signal with which all humans have a lot of experience. We are exposed to it from birth, and learn it through development in face-to-face contact with others. It is a signal that we can both perceive and produce. The role of the motor system in speech perception has been debated for a long time. Despite very active current research, it is still unclear to which extent, and in which role, the motor system is involved in speech perception. Recent evidence shows that brain areas involved in speech production are activated during listening to speech and watching a talker's articulatory gestures. Speaking involves coordination of articulatory movements and monitoring their auditory and somatosensory consequences. How do auditory, visual, somatosensory, and motor brain areas interact during speech perception? How do these sensorimotor interactions contribute to speech perception? It is surprising that despite a vast amount of research, the secrets of speech perception have not yet been solved. The multisensory and sensorimotor approaches provide new opportunities in solving them. Contributions to the research topic are encouraged for a wide spectrum of research on speech perception in multisensory and sensorimotor contexts, including novel experimental findings ranging from psychophysics to brain imaging, theories and models, reviews and opinions.

Diet in Brain Health and Neurological Disorders: Risk Factors and Treatments

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ISBN: 9783039216505 / 9783039216512 Year: Pages: 68 DOI: 10.3390/books978-3-03921-651-2 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Neurology
Added to DOAB on : 2019-12-09 16:39:37
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The role of nutrition in health and disease has been appreciated from time immemorial. Around 400 B.C., Hippocrates wrote “Let food by thy medicine and medicine be thy food.” In the 12th century, the great philosopher and physician Moses Maimonides wrote “any disease that can be treated by diet should be treated by no other means.” Now, in the 21st century, we are bombarded by claims in the media of “superfoods,” wondrous nutritional supplements, and special diets that promise to cure or prevent disease, improve health and restore functioning. Much of the focus has been on neurological disease, brain health and psychological functioning (behavior, cognition, and emotion). The hyperbole aside, there has been considerable progress in the past decade in our understanding of the contribution of specific nutrients and dietary patterns to brain development, physiology, and functioning. This Special Issue of Brain Sciences is devoted to the latest research on the role of nutritional deficiencies and excesses in the genesis of brain dysfunction, and use of diet for the prevention and treatment of brain and mental disorders. Basic laboratory and clinical research studies of the immature, adult, and aged nervous system are all welcome.

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