MEG TF Analysis

Reverse engineering FTW.

Sunday, November 06, 2005

--1106 Saturday Night (13H)------------------------------

CODING PLANS:
X M0: Make new SPTOOL lowpass filter to Mike's specs
X M1: Remove <10Hz muscle artifacts from data
M2: Generate CWT profiles for filtered data
M3: Qualitatively compare CWT profile for filtered/non-filtered data
M4: Qualitatively compare ROITFB anim for filtered/non-filtered data
M5: Brainstorm comparison metric

X C1: Make new SPTOOL bandpass filter to Ceon's specs
C2: Generate CWT profiles for filtered data
C3: Qualitatively compare CWT profile for filtered/non-filtered data
C4: Qualitatively compare ROITFB anim for filtered/non-filtered data
C5: Brainstorm comparison metric

X O1: Remove all commented "main.m" code blocks
O2: Abstract CWT profiling from "main.m" to "cmdprompt"-driven fxn

OTHER PLANS:
X M1: Review conference info (paper specs)
M2: Followup to uncover any questions
M3: Review analysis approach via email

X C1: SEND RESULTS ASAP
X C2: Request conference info (paper specs)
C3: Followup to uncover any questions
C4: Review analysis approach via email
C5: Remind Dr. Ramon about office access for me


GOT DONE:
1: Completely sorted out all data-organization (BIG DEAL!)
2: Designed HPF
3: Completed "getFilteredData.m" to accept the MxN and 1xN cases and handle errors for specifiable filter MAT input filename
4: Redesigned "getCurrentDensity.m" to compute J (or S?) for two data arrangements

  • ENSEMBLE AVERAGE / ALL CHANNELS
  • ALL EPOCHS / ROI CHANNELS

5: Removed unused scripts from code directory

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Wednesday, November 02, 2005

Ramon diogesis
1) Send Dr. Ramon single channel data segment (~2s) TODAY;
2) Negative spikes on BPF'ed data are periodic "beat" effect of muscle artifact;
3) Negative spikes on BPF frequency response may cause problems

Inner monologue
1) Ask how to specifically reduce edge artifacts on BPF'ed data (zero onset and unstable endpoint)