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| Searching Broad Stimulus Sets program used for DAI. | Searching Broad Stimulus Sets psychtoolbox programs used for DAI. Project Ref Number: MR09007 |
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| ''under construction'' | ''under construction'' [[FullSearch()]] . [[TableOfContents]] == Cburt_Watcher Version 1 == ################In the original design of the experiment we presented 92 images in###################### === Parameters === ###Starting with a set of#### == Cburt_Watcher MVPA == MVPA is implemented online to iteratively select stimuli elicitng similarity (or dissimilarity) in the pattern of activation in fusiform and inferotemporal regions in reference to a target object. To change the program to select the stimuli eliciting the most dissimilar pattern of activation to the reference object, open the script '/realtime/apps/experiments/pictures_mvpa/cburt_dai_adaptive_setup.m' and change the line {{{ ~21 dai.goforsimilarity=true }}} === Parameters === Participants are presented with 91 stimuli in a passive viewing task in scanner (16 slice acquisition, 1 sec TR). A target object (in this case a face) is selected as a reference from which to calculate response pattern similarity. 50% of the stimuli eliciting the most similar activation pattern to the reference stimulus are chosen for presentation across 4 successive generations. The aim is to efficiently converge on the stimuli best representing the pattern of activity in the specified region of interest. === Stimulus delivery program === Written in Psychtoolbox version 3 attachment:present_pics_v3.m |
Searching Broad Stimulus Sets psychtoolbox programs used for DAI. Project Ref Number: MR09007
under construction
Cburt_Watcher Version 1
Parameters
Cburt_Watcher MVPA
MVPA is implemented online to iteratively select stimuli elicitng similarity (or dissimilarity) in the pattern of activation in fusiform and inferotemporal regions in reference to a target object.
To change the program to select the stimuli eliciting the most dissimilar pattern of activation to the reference object, open the script '/realtime/apps/experiments/pictures_mvpa/cburt_dai_adaptive_setup.m' and change the line {{{ ~21 dai.goforsimilarity=true }}}
Parameters
Participants are presented with 91 stimuli in a passive viewing task in scanner (16 slice acquisition, 1 sec TR). A target object (in this case a face) is selected as a reference from which to calculate response pattern similarity.
50% of the stimuli eliciting the most similar activation pattern to the reference stimulus are chosen for presentation across 4 successive generations. The aim is to efficiently converge on the stimuli best representing the pattern of activity in the specified region of interest.
Stimulus delivery program
Written in Psychtoolbox version 3
attachment:present_pics_v3.m