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)

Monday, October 31, 2005

--1031 Monday Morning (6H)------------------------------

CODING PLANS:
M0: Make new SPTOOL lowpass filter to Mike's specs
M1: Remove <10Hz muscle artifacts from data

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

X C1: SEND RESULTS ASAP
C2: Request conference info (paper specs)


GOT DONE:
1: Cleaned out commented code blocks in "main.m"
2: Abstracted cmd-prompt code to subfxn
3: Abstracted filtering code to subfxn
4: Designed Gamma-band BPF
5: Began working from "workCeon.m" script
6: Saved JPG screens of BPF effect on ROI timeseries to subdir

---------------------------------------------------

Sunday, October 30, 2005

CODING PLANS:
M1: Remove <10Hz muscle artifacts from data

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

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


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

C1: SEND RESULTS ASAP
C2: Request conference info (paper specs)

Wednesday, September 14, 2005

Survey of Methods

On Wednesday August 31, I met with UWEE Research Professor Dr. Ceon Ramon.  We discussed the possibilities of continuing my UCB MEG TF Analysis project.  He told me to derive a plan of attack in conjunction with my UCB supervisors.  Additionally, he outlined a few topics of importance.  They are:  Hilbert Transform, Hilbert-Huang Transform, PCA, and ICA.  They are surveyed as follows.
(click here for word document)
After these topics have been adequately surveyed, I will present them to Dr. Ramon at our 11:30AM meeting tomorrow.  At this point, we will discuss what direction to take with immediate work and in what faculty I will integrate this project with his own work.