The interference of negative emotional stimuli on context processing in mildly depressed undergraduates

Figures & data

Figure 1. Construction of AX condition in emotional AX-CPT.

Note: We described picture stimulus as black for copyright protection.

Table 1. Descriptive statistics

		Depressed group (n = 22)		Non-depressed group (n = 22)
		M	SD	M	SD
	Age	20.86	2.45	20.46	1.51
	BDI-II	17.52	2.61	3.91	1.47
RT (ms)
Negative	AX	408.95	84.13	430.45	125.61
	AY	505.92	91.95	595.65	381.04
	BX	392.19	141.17	555.44	59.49
	BY	412.42	111.44	362.30	125.45
Neutral	AX	406.26	76.03	444.02	153.17
	AY	479.83	60.55	515.63	173.33
	BX	390.13	149.47	380.01	137.28
	BY	407.55	126.46	387.82	145.47
Error rate
Negative	AX	0.08	0.06	0.06	0.06
	AY	0.07	0.02	0.09	0.05
	BX	0.23	0.15	0.12	0.12
	BY	0.06	0.04	0.08	0.08
Neutral	AX	0.04	0.05	0.07	0.09
	AY	0.05	0.02	0.09	0.07
	BX	0.11	0.08	0.12	0.11
	BY	0.06	0.02	0.10	0.13
d′-context
Negative		1.52	0.45	1.80	0.62
Neutral		2.19	0.61	1.98	0.79

Notes: BDI-II: Beck Depression Inventory II; RT: Reaction time.

Table 2. Statistics of three-way ANOVAs

Sources	df	MSE	F	ηp^2
RT
Group × Emotion × Trial type	1.901	0.001	0.824	0.02
Group × Emotion	1	0.001	0.001	0.01
Group × Trial type	1.652	0.037	1.123	0.03
Emotion × Trial type	1.901	0.011	0.907	0.02
Group	1	0.002	0.014	0.01
Emotion	1	0.024	1.608	0.04
Trial type	1.16	0.702	21.362*	0.33
Error rates
Group × Emotion × Trial type	2.305	0.021	3.166*	0.07
Group × Emotion	1	0.069	10.429*	0.20
Group × Trial type	2.058	0.048	4.050*	0.09
Emotion × Trial type	2.305	0.033	5.029*	0.11
Group	1	0.003	0.273	0.01
Emotion	1	0.04	6.004*	0.13
Trial type	2.058	0.21	17.714*	0.30

Note. RT: Reaction time.

* p < 0.05.