Correlation between precontemplation and alpha activity in gambling disorder

Figures & data

Table 1 Comparisons of demographic and clinical symptom scores between two groups

	Group 1	Group 2	t	p
	(N=13)	(N=50)
Age (year)	40.69±12.17	36.21±10.67	1.56	0.124
Education (year)	14.28±1.98	15.18±1.71	−1.94	0.058
BDI	18.79±9.74	13.71±9.24	2.12	0.038*
BAI	14.31±11.25	10.21±8.30	1.66	0.102
BIS	57.79±8.60	54.47±7.46	1.64	0.105
LSNS	25.59±5.82	24.38±4.73	0.91	0.368
WURS	31.31±19.58	27.03±13.20	1.03	0.307
CPGI	19.9±6.03	17.29±6.46	1.58	0.120
GSAS	23.41±13.79	22.12±10.74	0.42	0.677
RTCQ
Pre-contemplation	−3.34±3.15	−3.88±3.94	0.59	0.560
Contemplation	5.62±2.24	5.55±2.09	0.14	0.891
Action	3.90±3.07	2.88±3.73	1.17	0.247

Note: *P≤0.05.

Abbreviations: BDI, Beck Depression Inventory; BAI, Beck Anxiety Inventory; BIS, The Korean version of Barratt Impulsiveness Scale; LSNS, Lubben Social Network Scale; WURS, Wender-Utah Rating Scale; CPGI, Canadian Problem Gambling Index; GSAS, Gambling Symptom Assessment Scale; RTCQ, Readiness To Change Questionnaire.

Figure 1 Topographical maps of the absolute and relative powers in patients with gambling addiction. Scales show the uV² for absolute power and the % for relative power. Red represents higher values, and blue represents lower values. The left topography denotes the topographical distribution of the z-score of electroencephalogram power. The right topography denotes the topographical distribution of p-values between group 1 and group 2 (Independent t-test).

Figure 2 Scatter plots of the Pearson’s partial correlation analysis controlled for age, education, BDI and BAI between z-score of relative alpha power and pre-contemplation score of RTCQ.

Abbreviations: BDI, Beck Depression Inventory; BAI, Beck Anxiety Inventory; RTCQ, Readiness To Change Questionnaire.