Client's name: |
Blackett, Glyn |
Assessment date: |
07/06/2024 17:05 |
Y axis shows amplitude in microvolts
Legend: gold = eyes closed (EC), blue = eyes open (EO), pink = challenge condition (CC), green = brain stim
|
|
|
||
|
|
|
||
|
||||
|
Y axis shows relative amplitude in percent, X axis shows frequency in Hertz
Legend: gold = eyes closed (EC), blue = eyes open (EO), pink = challenge condition (CC), green = brain stim
 |
 |
 |
||
 |
 |
 |
||
 |
||||
 |
Site |
EC |
EO |
CC or Stim |
EO to CC |
EC to CC |
EO to EC |
F3 |
1.18 |
1.06 |
- |
- |
- |
11.2 % |
Fz |
1.27 |
1.64 |
- |
- |
- |
-22.5 % |
F4 |
1.42 |
1.19 |
- |
- |
- |
19.9 % |
C3 |
1.30 |
1.44 |
- |
- |
- |
-9.9 % |
Cz |
1.67 |
1.23 |
- |
- |
- |
35.3 % |
C4 |
1.30 |
1.67 |
- |
- |
- |
-22.2 % |
Pz |
1.30 |
1.38 |
- |
- |
- |
-6.2 % |
O1 |
1.21 |
1.34 |
- |
- |
- |
-9.6 % |
Whole Brain Avg. |
1.33 |
1.37 |
- |
- |
- |
- |
Legend: gold = eyes closed (EC), blue = eyes open (EO), pink = challenge condition (CC), green = brain stim, dotted line = whole brain average
Alpha amplitude should quickly rise on closing eyes, most prominently at the back of the head (> 50%), then drop down again when the eyes open.
Site |
Response |
Blocking |
Flexibility (EO1 to EO2) |
O1 |
124.7 % |
-123.3 % |
0.6 % |
Pz |
107.6 % |
-70.0 % |
22.1 % |
Cz |
52.4 % |
-43.4 % |
6.3 % |
C3 |
47.9 % |
-44.1 % |
2.6 % |
C4 |
53.6 % |
-46.4 % |
4.9 % |
Alpha speed is a measure of brain efficiency and correlates with intelligence. The table below shows two measures of speed: (i) dominant frequency in Hertz and (ii) the ratio of slow alpha to fast alpha amplitudes. Optimal alpha dominant frequency is 10Hz and above while the ratio is ideally less than 1.0.
Site |
DF (EC) |
DF (EO) |
DF (CC or Stim) |
Ratio (EC) |
Ratio (EO) |
Ratio (CC or Stim) |
F3 |
8.5 Hz |
9.1 Hz |
- |
2.37 |
1.32 |
- |
Fz |
9.0 Hz |
8.7 Hz |
- |
1.62 |
1.64 |
- |
F4 |
8.3 Hz |
9.0 Hz |
- |
1.95 |
1.57 |
- |
C3 |
8.8 Hz |
9.1 Hz |
- |
1.51 |
1.42 |
- |
Cz |
8.6 Hz |
8.8 Hz |
- |
2.46 |
1.60 |
- |
C4 |
8.8 Hz |
8.7 Hz |
- |
1.77 |
1.65 |
- |
Pz |
8.9 Hz |
8.7 Hz |
- |
2.37 |
1.53 |
- |
O1 |
9.1 Hz |
8.7 Hz |
- |
2.55 |
1.49 |
- |
Whole Brain Avg. |
8.8 Hz |
8.9 Hz |
- |
2.08 |
1.53 |
- |
Site |
EC |
EO |
CC or Stim |
F3 |
0.71 |
0.93 |
- |
Fz |
0.70 |
1.09 |
- |
F4 |
0.76 |
0.86 |
- |
C3 |
0.74 |
0.96 |
- |
Cz |
0.70 |
0.80 |
- |
C4 |
0.65 |
0.89 |
- |
Pz |
0.48 |
0.78 |
- |
O1 |
0.38 |
0.72 |
- |
Whole Brain Avg. |
0.64 |
0.88 |
- |
Optimal brain state: theta, alpha and beta are within 10%. Imbalances may correlate to emotional problems.
Sites |
Theta |
Alpha |
Beta |
Fast Beta |
T:B |
F3-F4 (EC) |
-11.5 % |
-4.0 % |
8.0 % |
-5.6 % |
-20.4 % |
F3-F4 (EO) |
-1.8 % |
-10.0 % |
9.7 % |
0.7 % |
-11.7 % |
C3-C4 (EC) |
-10.6 % |
-26.1 % |
-10.9 % |
-0.4 % |
0.3 % |
C3-C4 (EO) |
-11.8 % |
-21.4 % |
3.4 % |
-2.6 % |
-15.6 % |
1. F3-F4 |
|
 |
 |
2. C3-C4 |
|
 |
 |
Sites |
Delta |
Theta |
Alpha |
Beta |
Fast Beta |
F3 - F4 (EC) |
0.59 |
0.67 |
0.58 |
0.51 |
0.49 |
F3 - F4 (EO) |
0.70 |
0.71 |
0.50 |
0.51 |
0.45 |
C3 - C4 (EC) |
0.37 |
0.07 |
0.10 |
0.30 |
0.19 |
C3 - C4 (EO) |
0.37 |
0.07 |
0.03 |
0.23 |
0.16 |
Optimal brain state: more alpha at the back, especially in EC condition, and more beta in the front. Reversals may correlate with weak executive function.
1. Whole Brain | |
 |
 |
2. Left Brain | |
 |
 |
3. Right Brain | |
 |
 |
4. Midline | |
 |
 |
Site |
EC |
EO |
CC or Stim |
Fz |
0.63 |
0.81 |
- |
F3 |
0.70 |
0.68 |
- |
F4 |
0.80 |
0.74 |
- |
Sites |
Theta |
Alpha |
Beta |
Fast Beta |
T:B |
Fz-F3 (EC) |
36.8 % |
38.7 % |
27.5 % |
14.4 % |
7.3 % |
Fz-F3 (EO) |
41.0 % |
20.1 % |
-9.3 % |
8.6 % |
54.1 % |
Fz-F4 (EC) |
22.8 % |
33.3 % |
37.7 % |
8.4 % |
-12.2 % |
Fz-F4 (EO) |
38.5 % |
9.2 % |
0.4 % |
9.4 % |
38.0 % |
Entropy |
Brain Rate |
|||||
Site |
EC |
EO |
CC |
EC |
EO |
CC |
F3 |
87.68 |
88.94 |
- |
9.62 |
9.41 |
- |
Fz |
86.99 |
88.23 |
- |
9.08 |
9.24 |
- |
F4 |
88.41 |
88.79 |
- |
9.40 |
9.78 |
- |
C3 |
87.50 |
88.66 |
- |
9.53 |
10.06 |
- |
Cz |
85.97 |
88.23 |
- |
10.38 |
10.20 |
- |
C4 |
86.40 |
88.36 |
- |
8.76 |
9.00 |
- |
Pz |
84.83 |
88.50 |
- |
9.02 |
8.90 |
- |
O1 |
87.38 |
91.48 |
- |
10.61 |
10.77 |
- |
Whole Brain Avg. |
86.90 |
88.90 |
- |
9.55 |
9.67 |
- |
Legend: gold = eyes closed (EC), blue = eyes open (EO), pink = challenge condition (CC), green = brain stim, dotted line = whole brain average
