 |
| Research article summary (published 30 Aug 2002): |
|
Free Full Text! See links below |
Are eyes special? It depends on how you look at it.
Full Abstract
Recent behavioral data have shown that central nonpredictive gaze direction triggers reflexive shifts of attention toward the gazed-at location (e.g., Friesen & Kingstone, 1998). Friesen and Kingstone suggested that this reflexive orienting effect is unique to biologically relevant stimuli. Three experiments were conducted to test this proposal by comparing the attentional orienting produced by nonpredictive gaze cues (biologically relevant) with the attentional orienting produced by nonpredictive arrow cues (biologically irrelevant). Both types of cues produced reflexive orienting in adults (Experiment 1) and preschoolers (Experiment 2), suggesting that gaze cues are not special. However, Experiment 3 showed that nonpredictive arrows produced reflexive orienting in both hemispheres of a split-brain patient. This contrasts with Kingstone, Friesen, and Gazzaniga's (2000) finding that nonpredictive gaze cues produce reflexive orienting only in theface-processing hemisphere of split-brain patients. Therefore, although nonpredictive eyes and arrows may produce similar behavioral effects, they are not subserved by the same brain systems. Together, these data provide important insight into the nature of the representations of directional stimuli involved in reflexive attentional orienting.
Author information
Author/s: Ristic, Jelena (J); Friesen, Chris Kelland (CK); Kingstone, Alan (A);
Affiliation: University of British Columbia, Vancouver, Canada.
Journal and publication information
Publication Type: Case Reports; Journal Article; Research Support, Non-U.S. Gov't
Journal: Psychonomic bulletin & review (Psychon Bull Rev), published in United States. (Language: eng)
Reference: 2002-Sep; vol 9 (issue 3) : pp 507-13
Dates: Created 2002/11/04; Completed 2003/02/21; Revised 2006/11/15;
PMID: 12412890, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: 18 Feb 2009 00:00:00)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
External Links for this article
(including full text providers, if available):
Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.
This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.
MeSH headings (categories)
This article was linked to the MESH Headings shown below.
Related articles
These are the highest related articles currently in the database:
- Interhemispheric neural summation in the split brain: effects of stimulus colour and task.
30 Dec 2002 - Divided visuo-spatial attention systems with total and anterior callosotomy. 30 Dec 1999
- Callosal involvement in a lateralized stroop task in alcoholic and healthy subjects. 30 Oct 2006
- Redundancy gain in simple reaction time following partial and complete callosotomy. 30 Dec 2003
- Now you see it, now you don't: variable hemineglect in a commissurotomized man. 7 Sep 2005
- Interhemispheric integration of simple visuomotor responses in patients with partial callosal defects. 18 Oct 1994
- Extent and limits of callosal plasticity: presence of disconnection symptoms in callosal agenesis. 30 Jul 1995
- Corpus callosum size and inter-hemispheric function in schizophrenia. 26 Feb 1997
- Rightward attentional bias and left hemisphere dominance in a cue-target light detection task in a callosotomy patient. 29 Jun 1997
Related Article Map
10/18/1994
10/30/2006
Higher Relevance Score (16)
Lower Relevance Score (13)
Legend: 
- FREE Full text Article. - Abstract only. 
- Title only. More help.
See a large map of 100+ related articles.