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Knowing where to look: The role of m...

Kasper, Ryan W.

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Knowing where to look: The role of memory, attention, and response processes when implicitly learned context facilitates visual search.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Knowing where to look: The role of memory, attention, and response processes when implicitly learned context facilitates visual search./
作者:	Kasper, Ryan W.
面頁冊數:	129 p.
附註:	Source: Dissertation Abstracts International, Volume: 75-03(E), Section: B.
Contained By:	Dissertation Abstracts International75-03B(E).
標題:	Psychology, Cognitive. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3602115
ISBN:	9781303539145

Knowing where to look: The role of memory, attention, and response processes when implicitly learned context facilitates visual search.
Kasper, Ryan W.

Knowing where to look: The role of memory, attention, and response processes when implicitly learned context facilitates visual search. - 129 p.

Source: Dissertation Abstracts International, Volume: 75-03(E), Section: B.

Thesis (Ph.D.)--University of California, Santa Barbara, 2013.

The task of visually searching the environment, such as looking for a friend in a crowd, is both ubiquitous and difficult. Visual search can be improved by learning the contexts in which a search takes place (Chun & Jiang, 1998, 2003; Chun & Phelps, 1999), and experimental studies have implicated multiple processes as being important to the benefit of implicitly learned context in visual search (Chun, 2000). To test the involvement of memory, visual attention, and response processing systems that may support these contextual cueing benefits in visual search, three experiments were conducted. Experiment 1 used signal detection theory (SDT) measures to index visual (d' measure) and response (natural log beta) stages during a contextual cueing task in which the target could be present or absent. The results from Experiment 1 demonstrated that visual processes appear to be enhanced consistently, whereas response effects were only observed when viewing time of the display was limited. To further explore the role of visual and response processes, Experiment 2 employed EEG measures of visual attention (N2pc) and response processing (LRP) in a standard contextual cueing task. Similar to Experiment 1, the visual attention measure was enhanced during contextual cueing, but there was no evidence of response enhancements in Experiment 2. In Experiment 3, the involvement of long-term memory and visual attention systems and their relationship in context learning was explored in a two session EEG and fMRI study. Participants performed a standard contextual cueing task in Session 1 while simultaneous EEG and fMRI was recorded, and a follow-up session with EEG recording was conducted 1 week later. As in Experiment 2, the N2pc attention measure was enhanced after learning in Experiment 3, and correlations between medial temporal lobe (MTL) memory region activity and behavior in both sessions is consistent with past findings (Giesbrecht, Sy, & Guerin, 2012). Critically, attention (N2pc) and memory (MTL) measures were analyzed jointly and resulted in evidence for MTL involvement in N2pc attention enhancements, which is consistent with the notion that memory and attention interact in contextual cueing (Chun, 2000). When considered together, the findings from these three experiments suggest that memory and visual attention systems are important mechanisms underlying implicit context facilitation in visual search.

ISBN: 9781303539145Subjects--Topical Terms:

1017810
Psychology, Cognitive.

Knowing where to look: The role of memory, attention, and response processes when implicitly learned context facilitates visual search.
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