NDLI: Age Mediation of Frontoparietal Activation during Visual Feature Search

Content Provider	PubMed Central
Author	Madden, David J. Parks, Emily L. Davis, Simon W. Diaz, Michele T. Potter, Guy G. Chou, Ying-hui Chen, Nan-kuei Cabeza, Roberto
Copyright Year	2014
Abstract	Activation of frontal and parietal brain regions is associated with attentional control during visual search. We used fMRI to characterize age-related differences in frontoparietal activation in a highly efficient feature search task, detection of a shape singleton. On half of the trials, a salient distractor (a color singleton) was present in the display. The hypothesis was that frontoparietal activation mediated the relation between age and attentional capture by the salient distractor. Participants were healthy, community-dwelling individuals, 21 younger adults (19 – 29 years of age) and 21 older adults (60 – 87 years of age). Top-down attention, in the form of target predictability, was associated with an improvement in search performance that was comparable for younger and older adults. The increase in search reaction time (RT) associated with the salient distractor (attentional capture), standardized to correct for generalized age-related slowing, was greater for older adults than for younger adults. On trials with a color singleton distractor, search RT increased as a function of increasing activation in frontal regions, for both age groups combined, suggesting increased task difficulty. Mediational analyses disconfirmed the hypothesized model, in which frontal activation mediated the age-related increase in attentional capture, but supported an alternative model in which age was a mediator of the relation between frontal activation and capture.
Related Links	http://dx.doi.org/10.1016/j.neuroimage.2014.07.053
Ending Page	274
Page Count	13
Starting Page	262
File Format	PDF
ISSN	10959572
e-ISSN	10959572
Journal	NeuroImage
Issue Number	0 2
Volume Number	102
Language	English
Publisher Date	2014-11-15
Access Restriction	Open
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Neurology Cognitive Neuroscience

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Response-level processing during visual feature search: Effects of frontoparietal activation and adult age

Brain activation patterns during visual episodic memory processing among first-degree relatives of schizophrenia subjects

A Bilateral Frontoparietal Network Underlies Visuospatial Analogical Reasoning

Effects of Sleep Deprivation on Cortical Activation During Directed Attention in the Absence and Presence of Visual Stimuli

Frontoparietal Activation Distinguishes Face and Space from Artifact Concepts

NETWORK ACTIVATION DURING BIMANUAL MOVEMENTS IN HUMANS

Implicit phonological priming during visual word recognition

Neurophysiological correlates of relatively enhanced local visual search in autistic adolescents

Functional Activation of the Infant Cortex during Object Processing

Age Mediation of Frontoparietal Activation during Visual Feature Search

Similar Documents

Response-level processing during visual feature search: Effects of frontoparietal activation and adult age

Brain activation patterns during visual episodic memory processing among first-degree relatives of schizophrenia subjects

A Bilateral Frontoparietal Network Underlies Visuospatial Analogical Reasoning

Effects of Sleep Deprivation on Cortical Activation During Directed Attention in the Absence and Presence of Visual Stimuli

Frontoparietal Activation Distinguishes Face and Space from Artifact Concepts

NETWORK ACTIVATION DURING BIMANUAL MOVEMENTS IN HUMANS

Implicit phonological priming during visual word recognition

Neurophysiological correlates of relatively enhanced local visual search in autistic adolescents

Functional Activation of the Infant Cortex during Object Processing

Age Mediation of Frontoparietal Activation during Visual Feature Search