This project involves the study of lexical and syntactic processes in two major research designs. The first design focuses on word recognition and form driven processes and is aimed at addressing underlying mechanisms involved in lexical recognition processes. This element employs a priming paradigm tailored to assess the role of awareness and the impact of interference effects in masked naming on lexical Processing. The paradigm is focused on both normal individuals and patients with Alzheimer's disease. In relation to the latter group, special attention is devoted to whether masked priming mechanisms are preserved and whether neighbor- hood density effects are changed or eliminated. The second design is directed toward studying real-time measures of a class of syntactic relations that lies at the interface between semantic and syntactic processes. This research examines a core feature of human language comprehension: how the coreference between elements of a sentence is established -- as in the relation between a pronoun and its antecedent. Experiments include an examination of syntactic constraints, time course of coreference assignments, pronominal features, and biasing contexts. As in the first group of studies on lexical processing, these studies focus on both normal individuals and patients with Alzheimer's disease.

Project Start
Project End
Budget Start
Budget End
Support Year
Fiscal Year
Total Cost
Indirect Cost
University of Arizona
United States
Zip Code
Plante, Elena; Patterson, Dianne; Dailey, Natalie S et al. (2014) Dynamic changes in network activations characterize early learning of a natural language. Neuropsychologia 62:77-86
Fox, Cynthia Marie; Boliek, Carol Ann (2012) Intensive voice treatment (LSVT LOUD) for children with spastic cerebral palsy and dysarthria. J Speech Lang Hear Res 55:930-45
Boliek, Carol A; Hixon, Thomas J; Watson, Peter J et al. (2009) Refinement of speech breathing in healthy 4- to 6-year-old children. J Speech Lang Hear Res 52:990-1007
Keintz, Connie K; Bunton, Kate; Hoit, Jeannette D (2007) Influence of visual information on the intelligibility of dysarthric speech. Am J Speech Lang Pathol 16:222-34
Thom, Stacey A; Hoit, Jeannette D; Hixon, Thomas J et al. (2006) Velopharyngeal function during vocalization in infants. Cleft Palate Craniofac J 43:539-46
Nicol, Janet; Swinney, David; Love, Tracy et al. (2006) The on-line study of sentence comprehension: an examination of dual task paradigms. J Psycholinguist Res 35:215-31
Weismer, Gary (2006) Philosophy of research in motor speech disorders. Clin Linguist Phon 20:315-49
Alt, Mary; Plante, Elena (2006) Factors that influence lexical and semantic fast mapping of young children with specific language impairment. J Speech Lang Hear Res 49:941-54
Farinella, Kimberly A; Hixon, Thomas J; Hoit, Jeannette D et al. (2006) Listener perception of respiratory-induced voice tremor. Am J Speech Lang Pathol 15:72-84
Hixon, Thomas J; Hoit, Jeannette D (2006) A clinical method for the detection and quantification of quick respiratory hyperkinesia. Am J Speech Lang Pathol 15:15-9

Showing the most recent 10 out of 105 publications