Moser Dana, Basilakos Alexandra, Fillmore Paul, Fridriksson Julius
a Department of Communication Sciences and Disorders , University of New Hampshire , Durham , NH , USA.
b Department of Communication Sciences and Disorders , University of South Carolina , Columbia , SC , USA.
Neurocase. 2016 Aug;22(4):346-56. doi: 10.1080/13554794.2016.1172645. Epub 2016 Jun 5.
The site of crucial damage that causes acquired apraxia of speech (AOS) has been debated in the literature. This study presents five in-depth cases that offer insight into the role of brain areas involved in AOS. Four of the examined participants had a primary impairment of AOS either with (n = 2) or without concomitant mild aphasia (n = 2). The fifth participant presented with a lesion relatively isolated to the left anterior insula (AIns-L), damage that is rarely reported in the literature, but without AOS. Taken together, these cases challenge the role of the AIns-L and implicate the left motor regions in AOS.
导致后天性言语失用症(AOS)的关键损伤部位在文献中一直存在争议。本研究展示了五个深入的案例,这些案例有助于深入了解参与AOS的脑区所起的作用。四名被检查的参与者患有原发性AOS损伤,其中两名伴有轻度失语症,另外两名不伴有轻度失语症。第五名参与者的病变相对局限于左侧前岛叶(AIns-L),这种损伤在文献中很少有报道,但该参与者没有AOS。综合来看,这些案例对AIns-L的作用提出了质疑,并表明左侧运动区域与AOS有关。