Lab Activities | Behavioral Studies | Neuroimaging Studies | Publications

Lab Activities

The Plante laboratory is directed by Dr. Elena Plante. Laboratory operations are overseen by Mrs. Rebecca Vance. The laboratory includes students at all stages of their education, from undergraduate to doctoral and postdoctoral levels. Undergraduate and Doctoral students represent a variety of majors (e.g., Speech, Language & Hearing Sciences, Psychology, Pre-Med, Engineering). Students in the graduate clinical training program in Speech-Language Pathology are also active in the lab.

Meetings

Our primary lab motto: “Feed them and they will come”

Our lab holds its first meeting of each year over lunch at a local restaurant. This is scheduled in late August or early September. All current lab members are expected to attend.

Our secondary lab motto: “We’d rather do the work than meet about it.”

Other meetings are conducted on an “as needed” basis. Meetings are typically project-oriented and are arranged to accommodate the schedules of the principal participants. If you are interested in attending meetings, let Dr. Plante know.

Current studies

Current studies in the lab are centered on the following topics:

1. Why do children and adults with developmental language disorders have difficulty processing language? What forms of information do they extract from spoken language? Can we manipulate any of these forms of information to help improve their processing?

2. How can we improve diagnostic practices for children with language disorders?

3. What are the language characteristics of adults with developmental language disorders and how can we test these characteristics in order to better identify these individuals?

4. What brain resources do individuals draw on when they process spoken language? Do individuals with impairments draw on the same brain resources, and if not, what does that tell us about the nature of their language processing?

5. As people age, what predicts their memory abilities? Is it chronological age or specific brain-based factors?

 

Behavioral Studies

Although much is known concerning the expressive language deficits of children with language impairment, comparatively little is known about their receptive abilities. Even less is known about these skills in adults who evidence poor language skills. Behavioral studies currently focus on two groups: children with specific language impairment (SLI) and adults with developmental language disorders (e.g., SLI, Learning Disabilities). Parallel studies involving children and adults are focused on the ability of these individuals to extract information on language structure from speech. By understanding what information these individuals extract, and under what processing conditions, we may be able to provide better guidance for the development of improved therapy methods.

Neuroimaging Studies

The lab is currently conducting two types of neuroimaging studies.

Functional neuroimaging studies currently examine the brain resources recruited in language processing. Studies directed by affiliated lab faculty member, Dr. Thomas Christensen, use fMRI to examine how verbal processing, memory, and attentional interact to support performance on verbal processing tasks. Additional studies examine how activation in brain regions changes as verbal processing improves. These studies are intended to lay the groundwork for studies that examine individuals with disorders that may disrupt language, verbal memory, attention, or any combination of these skills.

Diffusion Tensor Imaging (DTI) and structural magnetic resonance imaging (MRI) studies are being used to understand how brain status might predict memory performance in the context of normal aging. This work is conducted in collaboration with Drs. Cyma Van Petten, Diane Patterson, and Betty Glisky in the Department of Psychology.

Publications

Examples of publications that reflect the lab's current areas of research focus include the following:

Fisher, J., Plante, E., Vance, R., Gerken, LA, & Glattke, T.J. (2007). Do Children and Adults With Language Impairment Recognize Prosodic Cues? Journal of Speech, Language, & Hearing Research, 50, 746 - 758.

Plante, E., Holland, S.K., Schmithorst, V.J. (2006). Prosodic processing by children: An fMRI study. Brain and Language, 97, 332-342.

Richardson, J., Harris, L., Plante, E., & Gerken, L.A. (2006). Subcategory Learning in Normal and Language Learning-Disabled Adults: How much information do they need? Journal of Speech, Language, & Hearing Research, 49, 1257 - 1266.

Spaulding, T.J., Plante, E., & Farinella, K.A. (2006). Eligibility Criteria for Language Impairment: Is the Low End of Normal Always Appropriate? Language, Speech, & Hearing Services in Schools, 37, 61 - 72.

Perona, K., Plante, E., & Vance, R. (2005). Diagnostic Accuracy of the Structured Photographic Expressive Language Test: Third Edition (SPELT-3). Language, Speech, & Hearing Services in Schools. 36, 103 - 115.

Van Petten, C., Plante, E., Davidson, P.S., Kuo, T., Bajuscak, L. & Glisky, E.L (2004). Memory and executive function in older adults: Relationships with temporal and prefrontal gray matter volumes. Neuropsychologia, 42, 1313-35.

Alt, M., Plante, E., & and Creusere, M. (2004). Semantic Features in Fast-Mapping: Performance of Preschoolers With Specific Language Impairment Versus Preschoolers With Normal Language Journal of Speech, Language, & Hearing Research, 47, 407 - 420.