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This is the "working memory" task used in the Human Connectome Project. The category specific representation task and the working memory task are combined into a single task paradigm. Participants were presented with blocks of trials that consisted of pictures of places, tools, faces and body parts (non-mutilated parts of bodies with no “nudity”). Within each run, the 4 different stimulus types were presented in separate blocks. Also, within each run, ½ of the blocks use a 2-back working memory task and ½ use a 0-back working memory task (as a working memory comparison). A 2.5 second cue indicates the task type (and target
for 0-back) at the start of the block. Each of the two runs contains 8 task blocks (10 trials of 2.5 seconds each, for 25 seconds) and 4 fixation blocks (15 seconds). On each trial, the stimulus is presented for 2 seconds, followed by a 500 ms inter-task interval (ITI).

Potential Additional Event Related Contrasts: Researchers can also use the TAB.txt E-Prime
data files to generate the following potential event-related contrasts:

http://humanconnectome.org/documentation/S500/HCP_S500+MEG2_Release_Appendix_VI.pdf
http://humanconnectome.org/documentation/S500/HCP_S500+MEG2_Release_Reference_Manual.pdf

References for Working Memory: Localizer (Drobyshevsky et al. 2006); Reliable across subjects (Drobyshevsky et al. 2006) and time (Caceres et al. 2009).
Definition contributed by VSochat about two years ago
Member of collection: Human Connectome Project (HCP) 500 Subject Release tfMRI
Descendant of: object working memory task
working memory fMRI task paradigm has been asserted to measure the following CONCEPTS
as measured by the contrasts:

 
 

 
 

 
 

 
 

 
 

 
 

 
 




as measured by the contrasts:

 
 

 
 

 
 




as measured by the contrasts:

 
 




as measured by the contrasts:

 
 




as measured by the contrasts:

 
 




as measured by the contrasts:

 
 




as measured by the contrasts:

 
 




as measured by the contrasts:

 
 




as measured by the contrasts:

 
 




as measured by the contrasts:

 
 

 
 

 
 

 
 

 
 

 
 

 
 




as measured by the contrasts:

 
 




DISORDERS associated with working memory fMRI task paradigm
No associations have been added.


IMPLEMENTATIONS of working memory fMRI task paradigm
No implementations have been added.
EXTERNAL DATASETS for working memory fMRI task paradigm
Dataset #1 NeuroVault Group Maps
CONTRASTS

In the Cognitive Atlas, we define a contrast as any function over experimental conditions. The simplest contrast is the indicator value for a specific condition; more complex contrasts include linear or nonlinear functions of the indicator across different experimental conditions.

INDICATORS
No indicators have yet been associated.


An indicator is a specific quantitative or qualitative variable that is recorded for analysis. These may include behavioral variables (such as response time, accuracy, or other measures of performance) or physiological variables (including genetics, psychophysiology, or brain imaging data).


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Term History

REVISION 5

Definition contributed by VSochat about two years ago:This is the "working memory" task used in the Human Connectome Project. The category specific representation task and the working memory task are combined into a single task paradigm. Participants were presented with blocks of trials that consisted of pictures of places, tools, faces and body parts (non-mutilated parts of bodies with no “nudity”). Within each run, the 4 different stimulus types were presented in separate blocks. Also, within each run, ½ of the blocks use a 2-back working memory task and ½ use a 0-back working memory task (as a working memory comparison). A 2.5 second cue indicates the task type (and target for 0-back) at the start of the block. Each of the two runs contains 8 task blocks (10 trials of 2.5 seconds each, for 25 seconds) and 4 fixation blocks (15 seconds). On each trial, the stimulus is presented for 2 seconds, followed by a 500 ms inter-task interval (ITI). Potential Additional Event Related Contrasts: Researchers can also use the TAB.txt E-Prime data files to generate the following potential event-related contrasts: http://humanconnectome.org/documentation/S500/HCP_S500+MEG2_Release_Appendix_VI.pdf http://humanconnectome.org/documentation/S500/HCP_S500+MEG2_Release_Reference_Manual.pdf References for Working Memory: Localizer (Drobyshevsky et al. 2006); Reliable across subjects (Drobyshevsky et al. 2006) and time (Caceres et al. 2009).

REVISION 4

Definition contributed by VSochat about two years ago:This is the "working memory" task used in the Human Connectome Project. The category specific representation task and the working memory task are combined into a single task paradigm. Participants were presented with blocks of trials that consisted of pictures of places, tools, faces and body parts (non-mutilated parts of bodies with no “nudity”). Within each run, the 4 different stimulus types were presented in separate blocks. Also, within each run, ½ of the blocks use a 2-back working memory task and ½ use a 0-back working memory task (as a working memory comparison). A 2.5 second cue indicates the task type (and target for 0-back) at the start of the block. Each of the two runs contains 8 task blocks (10 trials of 2.5 seconds each, for 25 seconds) and 4 fixation blocks (15 seconds). On each trial, the stimulus is presented for 2 seconds, followed by a 500 ms inter-task interval (ITI). Conditions (Blocked) 0-back faces 2-back faces 0-back places 2-back places 0-back tools 2-back tools 0-back body parts 2-back body parts Conditions (Event-Related) 0-back correct trials 2-back correct trials 0-back error trials 2-back error trials 0-back no response trials 2-back no response trials Additional Contrasts. These event types can be combined to create two categories of contrasts. Working Memory Contrasts 0-back contrast (activity combined across conditions 1-4) 2-back contrast (activity combined across conditions 5-8) 2-back versus 0-back contrast (2-back contrast minus 0-back contrast) Category Contrasts Faces contrast (0-back faces plus 2-back faces) Places contrast (0-back places plus 2-back places) Tools contrast (0-back tools plus 2-back tools) Body contrast (0-back body plus 2-back body) Potential Additional Event Related Contrasts: Researchers can also use the TAB.txt E-Prime data files to generate the following potential event-related contrasts: http://humanconnectome.org/documentation/S500/HCP_S500+MEG2_Relea

REVISION 3

Definition contributed by VSochat about two years ago:This is the "working memory" task used in the Human Connectome Project. The category specific representation task and the working memory task are combined into a single task paradigm. Participants were presented with blocks of trials that consisted of pictures of places, tools, faces and body parts (non-mutilated parts of bodies with no “nudity”). Within each run, the 4 different stimulus types were presented in separate blocks. Also, within each run, ½ of the blocks use a 2-back working memory task and ½ use a 0-back working memory task (as a working memory comparison). A 2.5 second cue indicates the task type (and target for 0-back) at the start of the block. Each of the two runs contains 8 task blocks (10 trials of 2.5 seconds each, for 25 seconds) and 4 fixation blocks (15 seconds). On each trial, the stimulus is presented for 2 seconds, followed by a 500 ms inter-task interval (ITI). Conditions (Blocked) 0-back faces 2-back faces 0-back places 2-back places 0-back tools 2-back tools 0-back body parts 2-back body parts Conditions (Event-Related) 0-back correct trials 2-back correct trials 0-back error trials 2-back error trials 0-back no response trials 2-back no response trials Additional Contrasts. These event types can be combined to create two categories of contrasts. Working Memory Contrasts 0-back contrast (activity combined across conditions 1-4) 2-back contrast (activity combined across conditions 5-8) 2-back versus 0-back contrast (2-back contrast minus 0-back contrast) Category Contrasts Faces contrast (0-back faces plus 2-back faces) Places contrast (0-back places plus 2-back places) Tools contrast (0-back tools plus 2-back tools) Body contrast (0-back body plus 2-back body) Potential Additional Event Related Contrasts: Researchers can also use the TAB.txt E-Prime data files to generate the following potential event-related contrasts: http://humanconnectome.org/documentation/S500/HCP_S500+MEG2_Relea

REVISION 2

Definition contributed by VSochat about two years ago:This is the "working memory" task used in the Human Connectome Project. The category specific representation task and the working memory task are combined into a single task paradigm. Participants were presented with blocks of trials that consisted of pictures of places, tools, faces and body parts (non-mutilated parts of bodies with no “nudity”). Within each run, the 4 different stimulus types were presented in separate blocks. Also, within each run, ½ of the blocks use a 2-back working memory task and ½ use a 0-back working memory task (as a working memory comparison). A 2.5 second cue indicates the task type (and target for 0-back) at the start of the block. Each of the two runs contains 8 task blocks (10 trials of 2.5 seconds each, for 25 seconds) and 4 fixation blocks (15 seconds). On each trial, the stimulus is presented for 2 seconds, followed by a 500 ms inter-task interval (ITI). Conditions (Blocked) 0-back faces 2-back faces 0-back places 2-back places 0-back tools 2-back tools 0-back body parts 2-back body parts Conditions (Event-Related) 0-back correct trials 2-back correct trials 0-back error trials 2-back error trials 0-back no response trials 2-back no response trials Additional Contrasts. These event types can be combined to create two categories of contrasts. Working Memory Contrasts 0-back contrast (activity combined across conditions 1-4) 2-back contrast (activity combined across conditions 5-8) 2-back versus 0-back contrast (2-back contrast minus 0-back contrast) Category Contrasts Faces contrast (0-back faces plus 2-back faces) Places contrast (0-back places plus 2-back places) Tools contrast (0-back tools plus 2-back tools) Body contrast (0-back body plus 2-back body) Potential Additional Event Related Contrasts: Researchers can also use the TAB.txt E-Prime data files to generate the following potential event-related contrasts: http://humanconnectome.org/documentation/S500/HCP_S500+MEG2_Relea

REVISION 1

Definition contributed by VSochat about two years ago:The category specific representation task and the working memory task are combined into a single task paradigm. Participants were presented with blocks of trials that consisted of pictures of places, tools, faces and body parts (non-mutilated parts of bodies with no “nudity”). Within each run, the 4 different stimulus types were presented in separate blocks. Also, within each run, ½ of the blocks use a 2-back working memory task and ½ use a 0-back working memory task (as a working memory comparison). A 2.5 second cue indicates the task type (and target for 0-back) at the start of the block. Each of the two runs contains 8 task blocks (10 trials of 2.5 seconds each, for 25 seconds) and 4 fixation blocks (15 seconds). On each trial, the stimulus is presented for 2 seconds, followed by a 500 ms inter-task interval (ITI). Conditions (Blocked) 0-back faces 2-back faces 0-back places 2-back places 0-back tools 2-back tools 0-back body parts 2-back body parts Conditions (Event-Related) 0-back correct trials 2-back correct trials 0-back error trials 2-back error trials 0-back no response trials 2-back no response trials Additional Contrasts. These event types can be combined to create two categories of contrasts. Working Memory Contrasts 0-back contrast (activity combined across conditions 1-4) 2-back contrast (activity combined across conditions 5-8) 2-back versus 0-back contrast (2-back contrast minus 0-back contrast) Category Contrasts Faces contrast (0-back faces plus 2-back faces) Places contrast (0-back places plus 2-back places) Tools contrast (0-back tools plus 2-back tools) Body contrast (0-back body plus 2-back body) Potential Additional Event Related Contrasts: Researchers can also use the TAB.txt E-Prime data files to generate the following potential event-related contrasts: http://humanconnectome.org/documentation/S500/HCP_S500+MEG2_Release_Appendix_VI.pdf 1. Targets a. For 2-back tasks, targets are 2-back

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