The visual feedback signal was occasionally complemented with direct tactile and auditory feedback of EEG amplitude in the reward band. A Huynh-Feldt correction for degrees of freedom was applied to the task by measure interaction to counter potential nonsphericity of the four dependent measures. Planned comparison t-tests were used to evaluate differences for each dependent measure, applying the Bonferroni correction for multiple tests. Mean standard scores for TOVA subtests before and after 20 or more neurofeedback sessions for 142 adults with attention problems. Response Time 103.1 103.0 -0.1 Resp.
Results are even more dramatic when individual data are observed.
As can be seen in Figure 2, only a handful of subjects demonstrated declines in impulsivity scores while the majority improved greatly and in proportion to pre-treatment values. Improvement extended above and beyond the normal range for many individuals. As can be seen, only a handful of subjects demonstrated marginal declines in impulsivity scores while the majority improved greatly and in proportion to pre-treatment values. Response variability improved 25.9 points and inattention scores improved by 40.4 points for those with pre-training scores of 70 or below. Only adults with pre-treatment scores of 105 or below were included.