English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Separation of phasic arousal and expectancy effects in a speeded reaction time task via fMRI

Hackley, S., Langner, R., Rolke, B., Erb, M., Grodd, W., & Ulrich, R. (2009). Separation of phasic arousal and expectancy effects in a speeded reaction time task via fMRI. Psychophysiology, 46(1), 163-171. doi:10.1111/j.1469-8986.2008.00722.x.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0002-CA4C-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-CA4D-5
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Hackley, SA, Author
Langner, R, Author
Rolke, B, Author
Erb, M1, Author              
Grodd, W1, Author              
Ulrich, R, Author
Affiliations:
1External Organizations, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: Sixteen neurologically normal volunteers performed a 2‐choice speeded reaction time (RT) task in which the imperative was the change in color of a clock hand. During trial blocks with low temporal uncertainty (good clock condition), this imperative stimulus occurred at a fixed location (e.g., 2:00). In the bad clock condition, the clock was unpredictive of imperative onset. On half of both good and bad clock trials, a task‐irrelevant, cutaneous accessory stimulus accompanied the imperative. The speeding of reactions by the accessory was associated with activation primarily in and near the supramarginal gyrus of the parietal lobe. Contrasts of good‐ versus bad‐clock conditions revealed activation in a variety of perceptual, motor, and executive control regions. Apart from interactions within the cerebellum and left anterior insula, there was little overlap between structures influenced by the arousal and expectancy manipulations.

Details

show
hide
Language(s):
 Dates: 2009-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1111/j.1469-8986.2008.00722.x
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Psychophysiology
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: New York, NY [etc.] : Blackwell Publishing Inc. [etc.]
Pages: - Volume / Issue: 46 (1) Sequence Number: - Start / End Page: 163 - 171 Identifier: ISSN: 0048-5772
CoNE: https://pure.mpg.de/cone/journals/resource/954925334698