The effects of working memory demands on the neural correlates of prospective memory

Citation Detail

Title:

The effects of working memory demands on the neural correlates of prospective memory.

Author(s):

West, Robert, Department of Psychology, University of Notre Dame, Notre Dame, IN, US, west.19@nd.edu 
Bowry, Ritvij, Department of Psychology, University of Notre Dame, Notre Dame, IN, US
Krompinger, Jason, Department of Psychology, University of Notre Dame, Notre Dame, IN, US

Address:

West, Robert, Department of Psychology, University of Notre Dame, 118 Hagger Hall, Notre Dame, IN, US, 46556, west.19@nd.edu 

Source:

Neuropsychologia, Vol 44(2), 2006. pp. 197-207.

Publisher:

Netherlands: Elsevier Science.

ISSN:

0028-3932 (Print)

Digital Object Identifier:

10.1016/j.neuropsychologia.2005.05.003 

Language:

English

Keywords:

working memory; neural correlates; prospective memory; event related brain potentials; delayed intentions; stimuli detection

Abstract:

Event-related brain potentials (ERPs) were used to examine the reciprocal costs of working and prospective memory loads on the neural correlates of the realization of delayed intentions and the detection of target stimuli. The electrophysiological data revealed several interesting results: (1) distinct modulations of the ERPs were elicited by working memory targets and prospective memory cues, (2) working memory load modulated the amplitude of the N300 elicited by prospective memory cues, (3) prospective memory load was associated with a broadly distributed sustained modulation that began shortly after stimulus onset, and (4) brain-behavior correlations between the neural correlates of prospective memory and working memory varied with the working memory demands of the ongoing activity. These findings appear to indicate that attentional processes associated with the detection of prospective memory cues are sensitive to the working memory demands of the ongoing activity and that different processes may support prospective memory depending on the working memory demands of the ongoing activity. (PsycINFO Database Record (c) 2008 APA, all rights reserved)(from the journal abstract)

Subjects:

*Brain; *Evoked Potentials; *Long Term Memory; *Nervous System; *Short Term Memory; Intention; Signal Detection (Perception); Prospective Memory

Classification:

Neuropsychology & Neurology (2520)

Population:

Human (10)
Male (30)
Female (40)

Location:

US

Age Group:

Adulthood (18 yrs & older) (300)
Young Adulthood (18-29 yrs) (320)

Methodology:

Empirical Study; Quantitative Study

Publication Type:

Journal, Peer Reviewed Journal; Print
Format(s) Available: Electronic; Print

Document Type:

Journal Article

Release Date:

20060306

Accession Number:

2006-01998-005

Number of Citations in Source:

38

Persistent link to this record (Permalink):

Database:

PsycINFO