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Target context specification can reduce costs in nonfocal prospective memory
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Lourenço, Joana S. , White, Katherine and Maylor, Elizabeth A. (2013) Target context specification can reduce costs in nonfocal prospective memory. Journal of Experimental Psychology: Learning, Memory, and Cognition, Volume 39 (Number 6). pp. 1757-1764. doi:10.1037/a0033702 ISSN 0278-7393.
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Official URL: http://dx.doi.org/10.1037/a0033702
Abstract
Performing a nonfocal prospective memory (PM) task results in a cost to ongoing task processing, but the precise nature of the monitoring processes involved remains unclear. We investigated whether target context specification (i.e., explicitly associating the PM target with a subset of ongoing stimuli) can trigger trial-by-trial changes in task interference according to stimulus relevance for the nonfocal PM task. Participants performed a lexical decision task in which a PM task (press F6 when a target syllable appeared) was embedded. The target syllable always occurred in word trials, but we manipulated participants’ expectations regarding the target context by instructing them that targets would occur in words only (specific condition) or in both words and nonwords (nonspecific condition). A control condition with no PM demands was also included. Although having a PM task led to noticeable slowing on the ongoing task, specifying the PM target context reduced cost to items irrelevant to the intention (nonwords) while leaving PM performance intact. Moreover, higher cost for nonwords in the nonspecific than specific condition was persistent across the ongoing task even though the target syllable was repeatedly presented in words. These results suggest that stimulus processing can be modulated according to participants’ expectations about the lexical properties of the target, with trial-by-trial changes in task interference as a function of stimulus relevance to a nonfocal intention observed as a consequence.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology | ||||
Journal or Publication Title: | Journal of Experimental Psychology: Learning, Memory, and Cognition | ||||
Publisher: | American Psychological Association | ||||
ISSN: | 0278-7393 | ||||
Official Date: | November 2013 | ||||
Dates: |
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Volume: | Volume 39 | ||||
Number: | Number 6 | ||||
Page Range: | pp. 1757-1764 | ||||
DOI: | 10.1037/a0033702 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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