Table 2. Mean and standard deviation of correct response time (in milliseconds) for each age group in each Planar Orientation by Filtering condition separately.

Age (years)	Upright-HV		Upright-H		Upright-V		Inverted-HV		Inverted-H		Inverted-V
	Mean	std	Mean	std	Mean	std	Mean	std	Mean	std	Mean	std
6–7	1876	308	1902	338	1891	429	2052	454	1921	428	1894	365
8–9	1740	390	1844	385	1919	367	1835	360	1892	297	1834	375
10–11	1420	293	1518	328	1562	298	1576	330	1558	324	1559	281
12–13	1256	293	1372	322	1505	308	1445	263	1550	338	1567	367
14–15	1210	376	1260	324	1344	322	1304	291	1361	331	1453	369
16–17	1216	295	1206	296	1344	324	1339	342	1380	343	1388	320
18–19	1028	232	1149	281	1210	270	1163	302	1258	334	1240	270
20–35	1095	266	1206	333	1320	298	1389	372	1504	471	1425	382
59–74	1637	399	1751	440	1889	441	1988	445	1994	462	1928	445
Total	1365	405	1445	417	1527	407	1531	437	1565	425	1562	399