Investigating the origin of nonfluency in aphasia: A path modeling approach to neuropsychology.

ABSTRACT: A major challenge in understanding the origin of clinical symptoms in neuropsychological impairments is capturing the complexity of the underlying cognitive structure. This paper presents a practical guide to path modeling, a statistical approach that is well-suited for modeling multivariate outcomes with a multi-factorial origin. We discuss a step-by-step application of such a model to the problem of nonfluency in aphasia. Individuals with aphasia are often classified into fluent and nonfluent groups for both clinical and research purposes, but despite a large body of research on the topic, the origin of nonfluency remains obscure. We propose a model of nonfluency inspired by the psycholinguistic approach to sentence production, review several bodies of work that have independently sugges

SUBMITTER: Nozari N 

PROVIDER: S-EPMC5630269 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature