Abstract

The research program will examine the selective processing of semantic information. A series of dual channel discrimination tasks have been proposed, in which words will be defined as relevant or irrelevant on the basis of one dimension, and may be identified as targets within the attended class of stimuli on the basis of a second attribute. Event- related brain potentials (ERPs) will be recorded in order to determine the circumstances under, and extent to which, words classified as irrelevant are semantically processed. The use of ERPs will also permit quantification of the chronometry of the two decisions when these are based on physical or semantic characteristics of the stimuli. A further intent of this research will be to better define the psychological functions associated with, and brain areas subserving certain ERP components which are thought to reflect the selection of relevant stimuli for additional processing.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Research Project (R01)
Project #
1R01DC000895-01
Application #
3217628
Study Section
Sensory Disorders and Language Study Section (CMS)
Project Start
1990-04-01
Project End
1991-03-31
Budget Start
1990-04-01
Budget End
1991-03-31
Support Year
1
Fiscal Year
1990
Total Cost
Indirect Cost

  Institution

Name
Albert Einstein College of Medicine
Department
Type
Schools of Medicine
DUNS #
009095365
City
Bronx
State
NY
Country
United States
Zip Code
10461

  Publications

Deacon, Diana; Shelley-Tremblay, John F; Ritter, Walter et al. (2013) Electrophysiological evidence for the action of a center-surround mechanism on semantic processing in the left hemisphere. Front Psychol 4:936
Deacon, Diana; Grose-Fifer, Jillian; Hewitt, Sean et al. (2004) Physiological evidence that a masked unrelated intervening item disrupts semantic priming: implications for theories of semantic representation and retrieval models of semantic priming. Brain Lang 89:38-46
Grose-Fifer, Jillian; Deacon, Diana (2004) Priming by natural category membership in the left and right cerebral hemispheres. Neuropsychologia 42:1948-60
Deacon, Diana; Dynowska, Anna; Ritter, Walter et al. (2004) Repetition and semantic priming of nonwords: implications for theories of N400 and word recognition. Psychophysiology 41:60-74
Deacon, Diana; Grose-Fifer, Jillian; Yang, Chien-Ming et al. (2004) Evidence for a new conceptualization of semantic representation in the left and right cerebral hemispheres. Cortex 40:467-78
Deacon, D; Hewitt, S; Yang, C et al. (2000) Event-related potential indices of semantic priming using masked and unmasked words: evidence that the N400 does not reflect a post-lexical process. Brain Res Cogn Brain Res 9:137-46
Deacon, D; Uhm, T J; Ritter, W et al. (1999) The lifetime of automatic semantic priming effects may exceed two seconds. Brain Res Cogn Brain Res 7:465-72
Deacon, D; Nousak, J M; Pilotti, M et al. (1998) Automatic change detection: does the auditory system use representations of individual stimulus features or gestalts? Psychophysiology 35:413-9
Deacon, D; Hewitt, S; Tamney, T (1998) Event-related potential indices of semantic priming following an unrelated intervening item. Brain Res Cogn Brain Res 6:219-25
Nousak, J M; Deacon, D; Ritter, W et al. (1996) Storage of information in transient auditory memory. Brain Res Cogn Brain Res 4:305-17

Showing the most recent 10 out of 13 publications