On Colour, Category Effects, and Alzheimer’s Disease: A Critical Review of Studies and Further Longitudinal Evidence

Table 1

Background information about the participants in the study (means and standard deviation, in brackets).

	NC-C	NC-G	AD-1	AD-2
Gender (m/f)	7/6	6/7	1/10
Years of education	4.8 (0.9)	5.4 (2.6)	5.8 (0.4)
Age	77.5 (6.4)	74.5 (3.7)	75.8 (4.0)	78.7 (4.3)
MMSE	28.5 (1.5)	29.5 (1.3)	21.3 (4.8)	19.2 (6.0)

Note. NC-C = normal control group (colour version), NC-G = normal control group (greyscale version), AD-1/AD-2 = Alzheimer’s disease group (first and second time-points), and MMSE = Mini Mental State Examination.
Same values as AD-1.