東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

The Effects of Reward on Attentional...

Lee, Jeongmi.

Linked to FindBook

Google Book

Amazon

博客來

The Effects of Reward on Attentional Selection.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	The Effects of Reward on Attentional Selection./
Author:	Lee, Jeongmi.
Description:	120 p.
Notes:	Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.
Contained By:	Dissertation Abstracts International74-10B(E).
Subject:	Psychology, General. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3565173
ISBN:	9781303146909

The Effects of Reward on Attentional Selection.
Lee, Jeongmi.

The Effects of Reward on Attentional Selection. - 120 p.

Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.

Thesis (Ph.D.)--The George Washington University, 2013.

Although recent evidence suggests that reward- and attention-based guidance recruit overlapping cortical regions and have similar effects on sensory responses, the exact nature of the relationship between the two remains elusive. Three series of behavioral and fMRI experiments were designed to investigate the precise nature of effects of reward on attentional selection, and to examine flexibility of the reward influences. In the first experimental series, effects of reward on space- and object-based selection were compared. Behavioral and neuroimaging results showed that space-based attentional allocation occurred mandatorily, integrating reward information over time, while object-based attentional allocation was completely replaced by the reward signal. The second experimental series investigated whether reward-based contingency learned in a bottom-up search task is transferred to a subsequent top-down search task. Results demonstrated that reward modulation effect established in a pop-out search task was transferred to a conjunction search task, increasing search efficiency for targets previously associated with higher reward. In the third experimental series, the precise nature of reward-based modulation on neuronal tuning function was investigated. It was found that reward optimizes orientation tuning adaptively to stimulus contexts. These results suggest that reward serves to constrain attentional selection by robustly representing valuable stimuli, and that an integrated priority map, based on reward information, guides both top-down and bottom-up attention.

ISBN: 9781303146909Subjects--Topical Terms:

1018034
Psychology, General.

The Effects of Reward on Attentional Selection.
LDR:02464nam a2200289 4500 001 1965555
005 20141030134120.5
008 150210s2013 ||||||||||||||||| ||eng d
020 $a 9781303146909
035 $a (MiAaPQ)AAI3565173
035 $a AAI3565173
040 $a MiAaPQ $c MiAaPQ
100 1 $a Lee, Jeongmi. $3 2102231
245 1 4 $a The Effects of Reward on Attentional Selection.
300 $a 120 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.
500 $a Adviser: Sarah Shomstein.
502 $a Thesis (Ph.D.)--The George Washington University, 2013.
520 $a Although recent evidence suggests that reward- and attention-based guidance recruit overlapping cortical regions and have similar effects on sensory responses, the exact nature of the relationship between the two remains elusive. Three series of behavioral and fMRI experiments were designed to investigate the precise nature of effects of reward on attentional selection, and to examine flexibility of the reward influences. In the first experimental series, effects of reward on space- and object-based selection were compared. Behavioral and neuroimaging results showed that space-based attentional allocation occurred mandatorily, integrating reward information over time, while object-based attentional allocation was completely replaced by the reward signal. The second experimental series investigated whether reward-based contingency learned in a bottom-up search task is transferred to a subsequent top-down search task. Results demonstrated that reward modulation effect established in a pop-out search task was transferred to a conjunction search task, increasing search efficiency for targets previously associated with higher reward. In the third experimental series, the precise nature of reward-based modulation on neuronal tuning function was investigated. It was found that reward optimizes orientation tuning adaptively to stimulus contexts. These results suggest that reward serves to constrain attentional selection by robustly representing valuable stimuli, and that an integrated priority map, based on reward information, guides both top-down and bottom-up attention.
590 $a School code: 0075.
650 4 $a Psychology, General. $3 1018034
650 4 $a Psychology, Cognitive. $3 1017810
650 4 $a Biology, Neuroscience. $3 1017680
690 $a 0621
690 $a 0633
690 $a 0317
710 2 $a The George Washington University. $b Psychology. $3 1022931
773 0 $t Dissertation Abstracts International $g 74-10B(E).
790 $a 0075
791 $a Ph.D.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3565173