## Rostral-Caudal Absolute Differences

#### dataset

Datasets usually provide raw data for analysis. This raw data often comes in spreadsheet form, but can be any collection of data, on which analysis can be performed.

Details:

Rostral-Caudal Data.sav

Data for producing Figures 1, 2

This dataset consists of spectral densities for 237 EEG records within discrete frequency bins for 19-channels. The 19 channels are:

1. Fp1

2. Fp2

3. F7

4. F3

5. Fz

6. F4

7. F8

8. T3

9. C3

10. Cz

11. C4

12. T4

13. T5

14. P3

15. Pz

16. P4

17. T6

18. O1

19. O2

The variable names are:

rc-absolute rostral-caudal difference

rl-absolute left-right difference

absz-absolute z-scores for rostral caudal used to select for 177 individuals

observed in Figures 1 and 2 (select zscores -1

-The next variables assume the general anatomy:

c(x)w(y)

where x refers to channel number (1-19) and y refers to discrete frequency spectral density (FFT resolution 0.24 Hz) between 0 and 40 Hz. Thus:

c1w56 refers to 13.44 (56*.24) Hz activity in Fp1

c11w89 refers to 21.36 (89*.24) Hz activity in C4…etc.

-The next variables assume the general anatomy:

rcw(y)

where y is the absolute difference between Fp1 and O2

frequency spectral density (FFT resolution .24 Hz) between 0 and 40 Hz. Thus:

rcw40 refers to 9.6 Hz (40*.24) absolute rostral (Fp1) caudal (O2)

difference.

-The next variables assume the general anatomy

rl(y)

where y is the absolute difference between T3 and T4

frequency spectral density (FFT resolution .24 Hz) between 0 and 40 Hz. Thus:

rl40 refers to 9.6 Hz (40*.24) absolute left (T3) right (T4)

difference.