Difference between revisions of "BREATH HOLDING"
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'''Sample Text''' | '''Sample Text''' | ||
| + | In the Breath Holding Task, participants were asked to alternate between holding their breath and breathing regularly while resting. Participants were presented with bars on the screen in order to pace breath holding. When the bar was green, they were asked to breathe regularly; when the bar was yellow, they were asked to prepare to hold their breath; and when the bar was red, they were asked to hold their breath for 13.5 seconds. This cycle was repeated eight times, for a total run time of 2 minutes and 46 seconds. Participants performed the BHT in the scanner while wearing a respiratory belt in order to measure breathing. The purpose of this task was to assess the contribution of respiratory rhythms to changes in the BOLD signal. | ||
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| + | For the practice run, participants completed two cycles. The following instructions were read to participants while they saw a demo picture of the bars. | ||
==Task Instructions== | ==Task Instructions== | ||
Revision as of 15:09, 15 March 2012
Contents
BREATH HOLDING TASK (BHT)
Task Background Info
Sample Text In the Breath Holding Task, participants were asked to alternate between holding their breath and breathing regularly while resting. Participants were presented with bars on the screen in order to pace breath holding. When the bar was green, they were asked to breathe regularly; when the bar was yellow, they were asked to prepare to hold their breath; and when the bar was red, they were asked to hold their breath for 13.5 seconds. This cycle was repeated eight times, for a total run time of 2 minutes and 46 seconds. Participants performed the BHT in the scanner while wearing a respiratory belt in order to measure breathing. The purpose of this task was to assess the contribution of respiratory rhythms to changes in the BOLD signal.
For the practice run, participants completed two cycles. The following instructions were read to participants while they saw a demo picture of the bars.
Task Instructions
Demo Instructions
Scan Instructions
Participants saw on the screen
Scoring Behavioral Data
Creating Onset Files (EVs)
Running First Level Analyses
List of Models
Behavioral Variables
Link back to LA5C page.
