SPM analysis for VBMEG

SPM解析法

  1. ファイルの準備
    • 被験者ディレクトリ（ex. YO010215）にEPI・Struct・Resultディレクトリを作成し、EPI・StructディレクトリにそれぞれfMRI撮像データ、構造MRI撮像データ（事前にMrcroでanalyzeフォーマットに変換 ex. x100008d）をコピーする。EPIのYO*0001、YO *0002ファイルは削除する。
  2. ヘッダ情報の更新
    • Utils – cd : YO010215/EPI
    • HDR Edit
    • Options – Set Voxel Dimension : 3 3 3
    • Options – Apply to Image : YO*.img
    • Options – Quit
  3. Slice Timing
    • Number of subjects/ sessions : 4
    • Select images : YO*a*.img, YO*b*.img, YO*c*.img, YO*d*.img
    • Select seaquence type : User specified
    • Order of slices : 51:-2:1 52:-2:2
    • Reference slice : 26
    • TR : 6
    • TA : 5.93-5.93/52
  4. Realign
    • Number of subjects : 1
    • Sessions : 4
    • Select images : aYO*a*.img, aYO*b*.img, aYO*c*.img, aYO*d*.img
    • Which option : Coregister only
  5. Utils – cd : YO010215/Struct
    • Coregister
    • Number of subjects : 1
    • Which option : Coregister & reslice
    • Modarity of the first target image : T1
    • MRIModarity of object image : EPI
    • Select target image : x100008d.img
    • Select object images : aYO*a0003.img
    • Select other images : aYO*.img
  6. Smooth
    • FWHM : 6 6 6
    • Select images : raYO*.img
  7. Utils – cd : YO010215/Result
    • fMRI Models
    • What would you like to do : Specify a model
    • Interscan interval : 6
    • scans per session : 80 80 80 80
    • are conditions replicated : yes
    • are timing parameters the same : yes
    • number of conditions or trials : 1
    • Name : trial 1
    • Stocastic design : No
    • SOA : fixed
    • SOA for trial 1 : 10
    • time to 1st trial : 0
    • parametric modulation : None
    • are these trials : Epoch
    • Select type of response : Box car
    • convolve with hrf : yes
    • add temporal deviation : No
    • epoch length for trial 1 : 5
    • interactions among trials : No
    • user specified regressor : 0
  8. fMRI Models
    • What would you like to do : estimate a specified model
    • Select SPM.mat : SPM_fMR*.mat
    • Select scans : EPI/sraYO*a*.img, sraYO*b*.img, sraYO*c*.img, sraYO*d*.img
    • remove global effect : scale
    • high-pass filter : none
    • low-pass filter : none
    • model intrinsic correlation : none
    • setup trial-specific F contrast : yes
    • Now
  9. Result
    • select spm.mat : SPM*.mat
    • define new contrastname : test1
    • contrast : 1 1 1 1
    • OK
    • done
    • mask with other contrast : no
    • title of comparison : test1
    • corrected hight : no
    • p value : 0.001
    • extended threshold : 0
    • Overlay : Struct/x100008d.img
  10. Wiener推定用データの保存
    • save(‘spmYO010215.mat’,’SPM’,’VOL’); （Wiener用SPMデータ出力
  • Written by Shigeki Kajiwara
  • Edited by Taku Yoshioka (2005-02-23)