EEG signal classification of tinnitus based on SVM and sample entropy

Figures & data

Figure 1. Schematic diagram of the 62 conductive pole cap electrode distribution and the 7 regions of interest of the brain analyser.

Table 2. Sample entropy values for the healthy group and tinnitus group.

Rhythm	Group	Right auditory	Left auditory	Right frontal	Left frontal	Central	Right parietal lobe	Left parietal lobe
δ	healthy	0.0051 ± 0.0003	0.0050 ± 0.0003	0.0053 ± 0.0003	0.0053 ± 0.0002	0.0054 ± 0.0001	0.0052 ± 0.0000	0.0051 ± 0.0001
	Tinnitus	0.0053 ± 0.0004	0.0053 ± 0.0004	0.0055 ± 0.0002	0.0054 ± 0.0002	0.0056 ± 0.0001	0.0054 ± 0.0003	0.0055 ± 0.0001
θ	healthy	0.0176 ± 0.0002	0.0175 ± 0.0002	0.0177 ± 0.0000	0.0175 ± 0.0001	0.0177 ± 0.0001	0.0181 ± 0.0001	0.0176 ± 0.0002
	Tinnitus	0.0173 ± 0.0001	0.0172 ± 0.0001	0.0174 ± 0.0000	0.0172 ± 0.0001	0.0174 ± 0.0001	0.0188 ± 0.0002	0.0175 ± 0.0001
α1	healthy	0.0242 ± 0.0003	0.0243 ± 0.0002	0.0241 ± 0.0000	0.0243 ± 0.0001	0.0241 ± 0.0002	0.0249 ± 0.0002	0.0245 ± 0.0001
	Tinnitus	0.0236 ± 0.0002	0.0239 ± 0.0002	0.0235 ± 0.0001	0.0236 ± 0.0002	0.0236 ± 0.0002	0.0240 ± 0.0003	0.0241 ± 0.0002
α2	healthy	0.0302 ± 0.0004	0.0298 ± 0.0006	0.0298 ± 0.0001	0.0302 ± 0.0001	0.0299 ± 0.0002	0.0307 ± 0.0001	0.0298 ± 0.0005
	Tinnitus	0.0308 ± 0.0003	0.0314 ± 0.0008	0.0314 ± 0.0001	0.0315 ± 0.0001	0.0312 ± 0.0006	0.0312 ± 0.0001	0.0316 ± 0.0003
β1	healthy	0.0483 ± 0.0004	0.0480 ± 0.0007	0.0483 ± 0.0003	0.0482 ± 0.0002	0.0478 ± 0.0004	0.0481 ± 0.0002	0.0475 ± 0.0002
	Tinnitus	0.0491 ± 0.0006	0.0487 ± 0.0003	0.0491 ± 0.0003	0.0492 ± 0.0002	0.0491 ± 0.0002	0.0484 ± 0.0002	0.0481 ± 0.0004
β2	healthy	0.0590 ± 0.0005	0.0587 ± 0.0006	0.0588 ± 0.0002	0.0585 ± 0.0003	0.0583 ± 0.0003	0.0591 ± 0.0006	0.0585 ± 0.0007
	Tinnitus	0.0584 ± 0.0008	0.0581 ± 0.0006	0.0589 ± 0.0003	0.0584 ± 0.0003	0.0585 ± 0.0003	0.0589 ± 0.0002	0.0585 ± 0.0003
β3	healthy	0.0827 ± 0.0010	0.0830 ± 0.0008	0.0826 ± 0.0005	0.0827 ± 0.0005	0.0818 ± 0.0001	0.0815 ± 0.0008	0.0822 ± 0.0004
	Tinnitus	0.0820 ± 0.0006	0.0824 ± 0.0011	0.0826 ± 0.0001	0.0824 ± 0.0005	0.0817 ± 0.0005	0.0812 ± 0.0003	0.0820 ± 0.0004
γ	healthy	0.1236 ± 0.0005	0.1234 ± 0.0011	0.1229 ± 0.0007	0.1228 ± 0.0010	0.1223 ± 0.0003	0.1226 ± 0.0003	0.1229 ± 0.0004
	Tinnitus	0.1223 ± 0.0009	0.1232 ± 0.0018	0.1222 ± 0.0008	0.1214 ± 0.0002	0.1201 ± 0.0006	0.1214 ± 0.0003	0.1221 ± 0.0010

Table 3. Mann-Whitney U test for the healthy group and tinnitus group for single channel.

	FC5	P4	C1	CP1
P值	0.004531	0.006099	0.00814	0.006099

Table 4. Mann-Whitney U test for the healthy group and tinnitus group.

Rhythm	Right auditory	Left auditory	Right frontal	Left frontal	Central	Right parietal lobe	Left parietal lobe
δ						**
θ						*	*
α1					*
α2		*			**		*
β1
β2
β3
Γ		*		**

Note: *Statistically significant difference between healthy group and tinnitus group, **extremely statistically significant difference between healthy group and tinnitus group

Table 5. Classification accuracy, recall, precision and F1 score.

Group	Accuracy (%)	Recall (%)	Precision (%)	F1 (%)
1	90.00	95.45	84.00	89.36
2	91.25	87.94	94.09	90.91
3	91.50	86.96	94.12	90.40
4	93.75	91.35	96.45	93.83
5	91.75	88.89	94.85	91.77
6	91.75	88.52	95.36	91.81
7	91.50	90.29	93.00	91.63
8	91.00	85.71	95.45	90.32
9	91.25	87.18	94.44	90.67
10	90.00	86.73	93.85	90.15
Standard deviation	0.99	2.71	3.32	1.18
Average	91.38	88.90	93.56	91.09

Table 1. Overview of the patients with tinnitus.

Number	Sex	Age (year)	Duration	Tinnitus frequency（Hz）
1	Female	21	2 year	4000
2	Male	25	3 year	500
3	Male	23	3 year	8000
4	Male	43	1 year	4000
5	Male	50	6 year	4000
6	Male	40	8 year	4000
7	Male	32	1 year	4000
8	Male	29	0year 3 month	4000
9	Female	25	0year 6 month	500
10	Female	31	5 year	4000