The temporal characteristics of brain-language relationships: Evidence from impai View Homepage


Ontology type: schema:MonetaryGrant     


Grant Info

YEARS

2009-2015

FUNDING AMOUNT

1628436 USD

ABSTRACT

DESCRIPTION (provided by applicant): Our research program proposes to chart the unfolding of language comprehension in unimpaired adults as well as in adults with aphasia secondary to stroke. We begin with the position that sentence comprehension is rooted in cognitive and neurobiological architectures that are likely to be constrained by various real-time processing demands under 'normal' operations. In this revised proposal we focus on lexical and structural processing routines with the major comparison of interest being between regular and slowed rates of speech. We slow rate of speech input to a rate just outside the normal range of 4 to 6 syllables per second and examine how the language comprehension process is modified in neurologically intact and compromised individuals. Our purpose in doing so is to uncover properties of language comprehension that might not be apparent under normal time constraints, and to reveal the intricacies of the comprehension deficit, in particular, in Broca's aphasia. For example, we hypothesize that the functional deficit observed under normal input conditions may be reduced under slow input conditions. We combine evidence from lesion-behavior analyses, functional neuroimaging and functional connectivity to better define which regions are actively recruited during sentence processing as well as to shed light on the functional commitment of specific brain regions to aspects of sentence comprehension. We anticipate that our work will have important implications for rehabilitation efforts in aphasia. More... »

URL

http://projectreporter.nih.gov/project_info_description.cfm?aid=8488292

Related SciGraph Publications

  • 2010-10. The Real-Time Processing of Sluiced Sentences in JOURNAL OF PSYCHOLINGUISTIC RESEARCH
  • 2010-04. Parallelism Effects and Verb Activation: The Sustained Reactivation Hypothesis in JOURNAL OF PSYCHOLINGUISTIC RESEARCH
  • 2009-06. Auditory Sentence Processing an Introduction in JOURNAL OF PSYCHOLINGUISTIC RESEARCH
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