Cralidis Ann, Lundgren Kristine
Department of Communication Sciences and Disorders, Longwood University , Farmville, VA , USA and.
Brain Inj. 2014;28(4):456-64. doi: 10.3109/02699052.2014.896945. Epub 2014 Mar 28.
To investigate phonemic and semantic verbal fluency performance in a group of young adult participants with and without traumatic brain injury.
Group comparison.
Twenty-five participants with moderate-to-severe TBI and 25 participants with no brain damage (NBD) were given phonemic and semantic verbal fluency tasks. Responses were analysed quantitatively and qualitatively.
Young participants with moderate-to-severe TBI generated significantly fewer total correct words and sub-categories for both fluency conditions when compared to controls. The total number of correct words generated on the phonemic condition and for the semantic category of animals was positively correlated with the number of category switches produced during the task.
While young participants with moderate-to-severe TBI produced fewer total correct words on both verbal fluency conditions in comparison to controls, these differences were greater on the phonemic condition. Participants with moderate-to-severe TBI switched less frequently on both fluency tasks and produced smaller cluster sizes only on the phonemic task in comparison to controls. These results are in contrast with previous investigations that have observed greater age-related declines on semantic tasks when compared to phonemic tasks.
调查一组有和没有创伤性脑损伤的年轻成年参与者的音素和语义言语流畅性表现。
组间比较。
25名中度至重度创伤性脑损伤参与者和25名无脑损伤（NBD）参与者接受了音素和语义言语流畅性任务。对反应进行了定量和定性分析。
与对照组相比，中度至重度创伤性脑损伤的年轻参与者在两种流畅性条件下产生的正确单词总数和子类别明显更少。在音素条件下和动物语义类别上产生的正确单词总数与任务期间产生的类别转换次数呈正相关。
虽然与对照组相比，中度至重度创伤性脑损伤的年轻参与者在两种言语流畅性条件下产生的正确单词总数较少，但这些差异在音素条件下更大。与对照组相比，中度至重度创伤性脑损伤的参与者在两种流畅性任务上的转换频率较低，并且仅在音素任务上产生的聚类规模较小。这些结果与先前的研究结果相反，先前的研究发现，与音素任务相比，语义任务中与年龄相关的下降更大。
