Table 5. The average reaction time and the average movement time differences before and after exposure to traffic noise .

Groups	Items	Different Mean RT(ms)		P value	Different Mean MT (ms)		P value
		Mean	SD		Mean	SD
Case	Introvert	69.3	49	0.006	15.4	7	0.431
	Extrovert	25.1	33		16.6	4
	Male	44	54	0.717	16.4	5	0.263
	Female	42.3	49		14	1
Control	Introvert	3.8	8	0.479	8	7	0.164
	Extrovert	2.1	11		5	5
	Male	2.85	10	0.925	8	6	0.116
	Female	2.5	8		10	12