An Electrophysiological Study of Involuntary Attention Capture in a Go/No-go Paradigm Public Deposited

http://ir.library.oregonstate.edu/concern/undergraduate_thesis_or_projects/7d278v79z

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • The present study examined whether attention capture is driven by object saliency or contingent on top-down control setting using a go/no-go paradigm. Specifically, we investigated whether salient color singletons capture attention only when the target itself is also a singleton. We used a go/no-go task. Participants were told to search the target display for a letter in a specific color and indicate its identity if it was present (“go” trials) and withheld their response if it was absent (“no go” trials). On every trial, this target display was preceded by a non-informative cue display containing a color singleton. The key manipulation was whether this irrelevant singleton contained the target color. We used the N2pc effect as a measure of attentional allocation. N2pc effects were obtained for all color singletons in the cue displays, even those that did not have the target color. This even held when we switched to a non-singleton target display (Experiments 4-5), suggesting capture based on stimulus salience. Intriguingly, whereas the robust N2pc effects indicated capture by salient stimuli, behavioral effects on response time suggested the opposite conclusion. These findings suggest that the irrelevant color singletons captured attention only briefly, releasing attention before the target arrived.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Grantor
Advisor
Non-Academic Affiliation
Keyword
Rights Statement
Language
Replaces
Additional Information
  • description.provenance : Submitted by Emily Dray (emily.dray@oregonstate.edu) on 2012-08-20T22:21:57Z No. of bitstreams: 1 Nathan Herdener - Final Thesis.pdf: 969796 bytes, checksum: d3e0075336c0c07a029572ef43061072 (MD5)
  • description.provenance : Approved for entry into archive by Sue Kunda(sue.kunda@oregonstate.edu) on 2012-08-23T15:39:43Z (GMT) No. of bitstreams: 1 Nathan Herdener - Final Thesis.pdf: 969796 bytes, checksum: d3e0075336c0c07a029572ef43061072 (MD5)
  • description.provenance : Made available in DSpace on 2012-08-23T15:39:43Z (GMT). No. of bitstreams: 1 Nathan Herdener - Final Thesis.pdf: 969796 bytes, checksum: d3e0075336c0c07a029572ef43061072 (MD5) Previous issue date: 2012-07-20

Relationships

In Administrative Set:
Last modified: 07/27/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items