1. Madhav Nandipati pd. 6 Third Quarter Presentation
Analysis of spectro-temporal receptive fields in an auditory neural network
Madhav Nandipati
pd. 6
Third Quarter Presentation

2. Third Quarter Goals
Add temporal coding
More realistic STRFs

3. Recap of Second Quarter
Created basic STRFs for the neural network

4. Temporal Coding

5. More Realistic STRFs
Making the computational STRFs appear more like STRFs in literature validates the neural network
Two ways to make it more realistic:
Padding
Color schemes

6. Padding Matlab pads TF with 0s: produces sharper image
Effect of padding on resulting STRF:

7. Colormaps
Different colormaps set range of values in matrix to different RGB values
Just skin-deep changes

8. Comparison
Which STRF is real? ?

9. Results

10. Future Direction Temporal model works well
Next step: more quantitative analysis
Prediction of output with STRFs