| Object memory and change detection: dissociation as a function of visual and conceptual similarity. | |
| | |
MedLine Citation:
|
PMID: 17466252 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
People often fail to detect a change between two visual scenes, a phenomenon referred to as change blindness. This study investigates how a post-change object's similarity to the pre-change object influences memory of the pre-change object and affects change detection. The results of Experiment 1 showed that similarity lowered detection sensitivity but did not affect the speed of identifying the pre-change object, suggesting that similarity between the pre- and post-change objects does not degrade the pre-change representation. Identification speed for the pre-change object was faster than naming the new object regardless of detection accuracy. Similarity also decreased detection sensitivity in Experiment 2 but improved the recognition of the pre-change object under both correct detection and detection failure. The similarity effect on recognition was greatly reduced when 20% of each pre-change stimulus was masked by random dots in Experiment 3. Together the results suggest that the level of pre-change representation under detection failure is equivalent to the level under correct detection and that the pre-change representation is almost complete. Similarity lowers detection sensitivity but improves explicit access in recognition. Dissociation arises between recognition and change detection as the two judgments rely on the match-to-mismatch signal and mismatch-to-match signal, respectively. |
| | |
Authors:
|
Yei-Yu Yeh; Cheng-Ta Yang |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2007-04-26 |
Journal Detail:
|
Title: Acta psychologica Volume: 127 ISSN: 0001-6918 ISO Abbreviation: Acta Psychol (Amst) Publication Date: 2008 Jan |
Date Detail:
|
Created Date: 2007-12-17 Completed Date: 2008-04-09 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0370366 Medline TA: Acta Psychol (Amst) Country: Netherlands |
Other Details:
|
Languages: eng Pagination: 114-28 Citation Subset: IM |
Affiliation:
|
Department of Psychology, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 106, Taiwan. yyy@ntu.edu.tw |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adolescent Adult Attention* Awareness Color Perception Concept Formation* Discrimination Learning* Female Humans Judgment Male Mental Recall Pattern Recognition, Visual* Psychophysics Reaction Time |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: An eight-toed foot: a rare pedal polydactyly.
Next Document: Chlorfenapyr: a pyrrole insecticide for the control of pyrethroid or DDT resistant Anopheles gambiae...