Experimental design

From FMRI Methods

Jump to: navigation, search

This section includes information relevant to the design and adminstration of experimental tasks.

Design specification

  • All designs
    • Number of blocks, trials or experimental units per session and/or subject
    • Length of each trial, and interval between trials
    • If variable interval, report the mean and range of ISIs and how they were distributed
  • Blocked designs
    • Length of blocks
  • Event-related designs
    • was the design optimized for efficiency, and if so, how?
  • Mixed designs
    • Report correlation between block and event regressors


Task specification

  • Instructions
    • What were subjects asked to do?
  • Stimuli
    • What were the stimuli, and how many were there?
    • Did specific stimuli repeat across trials?


Planned Comparisons

  • If the experiment has multiple conditions, what are the specific planned comparisons, or is an omnibus ANOVA used?
Retrieved from "http://www.fmrimethods.org/index.php/Experimental_design"
Personal tools