Behavioral and Brain Functions

Table 2 Means, standard deviations and group comparison for TAP (tonic and phasic alert, Go/Nogo) and Counting Stroop tests

From: Neuropsychological and neurophysiological benefits from white noise in children with and without ADHD

Measures	Group				t test
	TDC N = 17		ADHD N = 13		t values	p
	Mean	SD	Mean	SD	t values	p
Alertness (tonic)^a
Median	305.35	71.12	421.00	203.96	2.18	.04*
CV	0.22	0.08	0.32	0.14	2.42	.02*
Hits	40.00	0.00	39.62	0.96	−1.66	.11
Anticipations	0.00	0.00	0.00	0.00	–	–
Alertness (phasic)^b
Median	281.94	55.20	353.38	115.81	2.24	.03*
CV	0.17	0.05	0.31	0.17	3.31	.00*
Hits	39.29	1.82	35.08	5.59	−2.93	.01*
Omissions	0.00	0.00	0.54	1.45	1.54	.13
Anticipations	5.00	4.55	12.08	8.69	2.89	.01*
Go/Nogo
Median	521.88	79.15	584.83	92.01	1.97	.06
CV	0.24	0.06	0.29	0.05	2.21	.03*
Errors	2.59	2.12	5.23	3.68	2.48	.02*
Omission	0.71	1.21	3.15	5.16	1.90	.07
Stroop^c
Time interf. index	39.59	16.41	72.46	23.95	4.46	<.001*
Errors interf. index	0.35	0.70	2.08	3.40	2.04	.05*

^a Scores of tonic alert in alertness task
^b Scores of phasic alert in alertness task
^c Scores representing the difference of performance between counting and interference conditions: Time interf. index. difference of total times; Errors interf. index difference of non-corrected errors
* p value indicating significant difference between groups; overall α = .0

Back to article page

ISSN: 1744-9081

Contact us

Submission enquiries: journalsubmissions@springernature.com