In LitCog, processing speed was assessed through visual tests of digit and simple line comparisons, and symbol digit matching.
In cognitively healthy older people, the 4-meter timed walk test, which was also performed at usual pace, was also not related to the Digit Span test (score of Digit Span backward minus the score on the Digit Span forward) in older women [ 54] nor was the mobility performance (measured with POMA) related to the Digit Span backward in older men and women [ 6].
The study demonstrated that with increasing amplitudes of vibrotactile conditioning stimuli concurrent with the agnosia test, inaccuracies of digit identification increased, particularly at digits D3 and D4.
During the test, a list of digits was read out aloud with a speed of one digit/sec to the child.
The finger test of waving a digit in front of a player to check if he could follow it with his eyes was applied several times by coach Mr Kennedy to Benjamin.
Together with the lack of group differences on the remaining tests of attention (Digit Symbol Substitution, Trail Making Test, Stroop Color Word), we suggest a selective memory problem in the ε4 carriers.
When stimulus digits were presented in midline position, time perception was biased according to the magnitude of the digit: the duration of test low digits was underestimated compared with that of reference high digits and vice-versa, as revealed by the significant difference of bisection points in the two conditions (unpaired t-test: t = 12.2; p = 0.0001).
The Kruskal-Wallis tests of single-digit comparisons suggest highly significant differences between all locomotor types and all predictor ratios (Additional file 2).
Fig. 1 Scatter plots of the serum concentrations (x-axis) of valproate (µmol/L) (a, b) and lithium (mmol/L) (c) and neuropsychological test scores (y-axis) of digit span test backwards (a, c), and California verbal learning test (CVLT) short delay free recall (b) in the bipolar disorder sample.
In the forward and backward digit span tests, interviewers read sets of digits (of increasing lengths) at a set pace of 1/sec.
In the digit ordering test, interviewers read a list of digits which may include repeated numbers.
