Skip to main content
. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Neuroimage. 2012 May 24;62(3):1833–1840. doi: 10.1016/j.neuroimage.2012.05.039

Table 1.

Mean (SD) HbO and HbR responses during the test events. (a) and (b) Experiment 1 and (c) and (d) Experiment 2. For both experiments, one sample t-tests compared HbO and HbR responses (averaged over 6 to 20s) to zero at each channel. One-way ANOVAs tested for differences between groups at each channel. Follow-up comparisons, using independent samples t-tests, were performed for those channels in which a significant effect was obtained.

EXPERIMENT 1: 3–5 MOS HBO ONE SAMPLE T-TESTS M (SD) ONE-WAY ANOVA (DF = 53)
Neural Region Channel Shape Difference
N = 19		 Color Difference
N = 19		 Control
N = 18		 Between Subjects Effects
T3 1 .0023 (.003) ** .00008 (.002) .0003 (.003) F = 4.10 * η2 = .134
 Shape vs. Control t = 2.02 *, df = 35
 Color vs. Control t < 1, df = 35
2 .0020 (.008) .0017 (.008) .0004 (.007) F < 1
3 .0064 (.007) *** .0020 (.005) .0004 (.008) F = 3.70 * η2 = .123
 Shape vs. Control t = 2.35 *, df = 35
 Color vs. Control t < 1, df = 35
T5 4 .0059 (.007) *** .0048 (.006) ** .0043 (.006) * F < 1
5 .0017 (.007) .0033 (.006) * .0034 (.004) * F < 1
P3 6 .0069 (.007)** −.0056 (.015) −.0008 (.011) F = 5.89 ** η2 = .182
 Shape vs. Control t = 2.52 *, df = 35
 Color vs. Control t < 1, df = 35
7 .0034 (.010) .0045 (.013) −.0008 (.014) F < 1
01 8 .0063 (.006) *** .0043 (.008) * .0074 (.011) ** F < 1
9 .0065 (.006) *** .0052 (.009) * .0061 (.011) ** F < 1
EXPERIMENT 1: 3–5 MOS HBR ONE SAMPLE T-TESTS M (SD) ONE-WAY ANOVA (DF = 53)
Neural Region Channel Shape Difference
N = 19 		Color Difference
N = 19 		Control
N = 18 		Between Subjects Effects
T3 1 −.0015 (.004) .0001 (.003) −.0005 (.003) F = 1.10
2 −.0013 (.002) * − .0008 (.003) −.0015 (.003) * F < 1
3 −.0025 (.003) ** −.0001 (.003) −.0011 (.002) F = 3.90 *, η2 = .128
 Shape vs. Control t = 1.62, df = 35
 Color vs. Control t = 1.18, df = 35
T5 4 −.0011 (.003) −.0002 (.003) −.0005 (.003) F < 1
5 −.0008 (.002) −.0014 (.004) −.0002 (.003) F < 1
P3 6 −.0013 (.003) .0002 (.005) .0013 (.004) F = 1.79
7 −.0031 (.003) *** −.0002 (.006) −.0014 (.006) F = 1.37
O1 8 −.0007 (.002) −.0010 (.002) −.0009 (.002) F < 1
9 −.0003 (.003) −.0010 (.003) −.0018 (.004) * F = 1.04
EXPERIMENT 2: 11–12 MOS HBO ONE SAMPLE T-TESTS M (SD) ONE-WAY ANOVA (DF = 52)
Neural Region Channel Shape Difference
N = 19		 Color Difference
N = 18		 Control
N = 18		 Between Subjects Effects
T3 1 .0022 (.007) .0011 (.005) −.0007 (.004) F = 1.23
2 .0093 (.017) * .0038 (.007)* −.0007 (.005) F = 3.60 * η2 = .121
 Shape vs. Control t = 2.33 *, df = 35
 Color vs. Control t = 2.17 *, df = 34
3 .0063 (.013) * .0039 (.006) * −.0015 (.005) F = 3.84 * η2 = .129
 Shape vs. Control t = 2.48 *, df = 35
 Color vs. Control t = 2.85 **, df = 34
T5 4 .0042 (.016) .0018 (.006) −.0002 (.007) F < 1
5 .0023 (.006) .0020 (.007) .0015 (.006) F < 1
P3 6 −.0018 (.015) .0044 (.010) −.0008 (.009) F = 1.56
7 −.0044 (.016) .0041 (.013) .0022 (.010) F = 2.14
01 8 .0046 (.007) *** .0034 (.004) ** .0021 (.007) F < 1
9 .0105 (.012) ** .0042 (.007) * .0069 (.012) * F = 1.69
EXPERIMENT 2: 11–12 MOS HBR ONE SAMPLE T-TESTS M (SD) ONE-WAY ANOVA (DF = 52)
Neural Region Channel Shape Difference
N = 19 		Color Diffe9ence
N = 18 		Control
N = 18 		Between Subjects Effects
T3 1 .0009 (.004) −.0014 (.005) −.0008 (.005) F = 1.25
2 −.0013 (.004) −.0009 (.003) −.0002 (.003) F < 1
3 −.0013 (.004) −.0029 (.005) * −.0004 (.004) F = 1.43
T5 4 −.0001 (.005) −.0003 (.003) .0006 (.003) F < 1
5 −.0001 (.002) −.0004 (.002) .0005 (.002) F < 1
P3 6 −.0006 (.005) −.0006 (.004) .0012 (.005) F < 1
7 −.0024 (.007) −.0002 (.005) .0009 (.004) F = 1.85
O1 8 −.0008 (.002) * −.0007 (.002) −.0010 (.002) * F < 1
9 −.0008 (.002) −.0019 (.004) −.0014 (.003) F < 1

In all cases

*

p < .05;

**

p < .01;

***

p < .001, two-tailed.