文章基本信息

标题：Functional lateralization of lexical stress representation: a systematic review of patient data
本地全文：下载
作者：Häuser, Katja ; Domahs, Frank
期刊名称：Frontiers in Psychology
电子版ISSN：1664-1078
出版年度：2014
卷号：5
页码：1-4
DOI：10.3389/fpsyg.2014.00317
出版社：Frontiers Media
摘要：According to the functional lateralization hypothesis (FLH) the lateralization of speech prosody depends both on its function (linguistic = left, emotional = right) and on the size of the units it operates on (small = left, large = right). In consequence, according to the FLH, lexical stress should be processed by the left (language-dominant) hemisphere, given its linguistic function and small unit size.We performed an exhaustive search for case studies of patients with acquired dysprosody due to unilateral brain damage. In contrast to previous reviews we only regarded dysprosody at the lexical level (excluding phrasal stress). Moreover, we focused on the representational stage of lexical stress processing, excluding more peripheral perceptual or motor deficits.Applying these criteria, we included nine studies reporting on eleven patients. All of these patients showed representational deficits in word stress processing following a lesion in their language-dominant hemisphere. In nine out of eleven patients, it was the left hemisphere which was affected. This is a much more consistent pattern as found in previous reviews, in which less rigorous inclusion criteria may have blurred the pattern of results.We conclude that the representation of lexical stress crucially relies on the functioning of the language-dominant (mostly left) hemisphere.
关键词：word stress; lexical stress; functional lateralization; representational knowledge; Left hemisphere; right hemisphere; acquired disorders of language; dysprosody; Systematic review