ERIC Number: EJ766358
Record Type: Journal
Publication Date: 2007-Jun
Pages: 17
Abstractor: Author
ISBN: N/A
ISSN: ISSN-0096-1523
EISSN: N/A
Available Date: N/A
Short-Term Consolidation of Individual Identities Leads to Lag-1 Sparing
Dell'Acqua, Roberto; Pierre, Jolicoeur; Pascali, Angelo; Pluchino, Patrik
Journal of Experimental Psychology: Human Perception and Performance, v33 n3 p593-609 Jun 2007
A rapid serial visual presentation (RSVP) technique was used to investigate the role of the nature of processing carried out on targets in the Lag-1 sparing phenomenon. Lag-1 sparing refers to a higher accuracy in the task associated with the 2nd target when the 2 targets are immediately successive in the RSVP stream relative to when there are 1 or 2 intervening items between the targets. In 5 experiments, 0, 1, or 2 digits were embedded with equal probability in RSVP streams of letter distractors. In 4 of the experiments, subjects identified the digits in some blocks of trials, and they counted the number of presented digits in other blocks. In a 5th experiment, the counting task was replaced with a digit-sum task. The most interesting results were those from trials with 2 digits. Lag-1 sparing was always evident when the task involved the explicit identification of the digits. In addition, Lag-1 sparing was evident when subjects were required to sum 2 digits or to count digits of a prespecified parity subclass (e.g., count only even digits). In striking contrast, Lag-1 sparing was absent when subjects were required to count the digits independent of their parity subclass. These results suggest that the occurrence of Lag-1 sparing depends on the type of mental representation that must be generated on the basis of target information.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
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