Department of Communication Processes and Disorders, PO Box 117420, University of Florida, Gainesville, FL 32611-7420, USA.
NeuroRehabilitation. 1997;9(1):89-102. doi: 10.3233/NRE-1997-9108.
A speech production impairment can occur following damage to either the left or right hemisphere. The nature of the impairment, however, differs depending on which hemisphere is damaged and within the left hemisphere, whether the damage is to the anterior or posterior language areas. This paper reviews the recent literature on the types of speech production impairments that follow damage to the left and right cerebral hemispheres. Damage to the left hemisphere anterior language area causes primarily a phonetic impairment, i.e. a deficit in executing the articulatory maneuvers of sound production with a preserved ability to select the correct sound. Damage to the left hemisphere posterior language area causes primarily a phonological impairment, i.e. a deficit in the correct selection of a sound with an intact ability to implement the articulatory maneuvers for that incorrect sound. Damage to the right hemisphere can cause a speech production problem to the prosodic aspects of language. These differences have direct implications for the theraputic remediation of these speech production impairments.
语音生产障碍可能发生在左或右半球损伤后。然而，损伤的性质取决于损伤的是哪个半球，以及在左半球中，损伤是在前语言区还是在后语言区。本文综述了最近关于左、右大脑半球损伤后语音生产障碍类型的文献。左半球前语言区损伤主要导致语音障碍，即发音动作执行障碍，而正确选择声音的能力得以保留。左半球后语言区损伤主要导致语音障碍，即正确选择声音的能力受损，而发出不正确声音的发音动作实施能力完好。右半球损伤可能导致语言韵律方面的语音生产问题。这些差异对这些语音生产障碍的治疗矫正有直接影响。
