Table 2.

QST and interoceptive sensitivity results.

Tested modality	High Alexithymia group		Low Alexithymia group		t-value	df	p-value	Effect size (Cohen’s d)
	Mean	SD	Mean	SD
Warm threshold (°C)	36.73	3	34.43	1.46	3.08	38	0.004	0.97
Cold threshold (°C)	28.56	5.24	29.96	0.76	−1.18	38	0.24	−0.37
Warm detection accuracy (%)	80.11	40.80	80.11	40.80	0.00	38	1.00	0.00
Cold detection accuracy (%)	85.04	36.51	95.03	22.21	−1.04	38	0.30	−0.34
Pinprick laser heat-pain threshold (°C)	47.55	2.64	48.10	2.22	−0.71	38	0.48	−0.22
RTs to noxious laser stimulus (ms)	512	80.23	518.35	65.27	−0.27	38	0.8	−0.09
Sensitivity (d’)	1.79	0.75	1.82	0.56	0.12	38	0.9	−0.04
Response bias (C)	0.39	0.44	0.27	0.36	0.94	38	0.35	0.29
Tactile acuity threshold (mm)	1.66	0.38	1.61	0.36	0.42	38	0.67	0.13
Sensory detection task:
Tactile detection threshold (mA)	1.50	0.56	1.58	0.73	−0.46	38	0.64	−0.12
Pain threshold (mA)	1.63	0.63	1.73	0.73	−0.48	38	0.63	−0.15
Sensitivity (d’)	1.40	0.49	1.69	0.62	−1.66	38	0.10	−0.51
Response bias (C)	0.08	0.28	−0.02	0.23	1.23	38	0.22	0.35
Interoceptive sensitivity	0.74	0.15	0.73	0.19	0.09	38	0.92	0.05