Dear List,
Could someone help me understand how in the 3 column format for full model
setup , the last number or the strength affects the analysis. I assume it can
take only 0 or 1 as input. How does one decide which strength to apply? If for
example in a single session, I have multiple EVs whose strengths are different,
then should I be defining the lower strength EV as 0 ( in a 3 column text
file) and the higher strength EV as 1?The study design that I am tring to
analyse is an event related one:
The EVs are as follows:
There are 3 phases to the experiment:
Phase 1 : where two colors are presented red and blue
EV1= Red Phase1
EV2 = Red Phase 1
Phase 2: Where few reds are coupled with an auditory
stimuli:
EV3: Red + auditory stimuli
EV4: Red Phase 2
EV5:Blue Phase 2
Phase 3: Where no auditory stimuli are coupled to the colors
EV6: Red
EV7:Blue
Right now I have set all the EVs to strength '1' , but EV3 is definitely
stronger than the other EVs. What should I do in this case?
Thanks in advance,
Bosky
Laboratory for the Study of Emotion and Cognition,
Department of Biomedical Engineering
Stony Brook University,
New York, 11790
Phone- 631-444-8405/ 631-444-7868
