Effect of Chlorogenic Acid Intake on Cognitive Function in the Elderly: A Pilot Study

Table 3

Neurocognitive function (CNS Vital Signs).

Task	Pre	Post		value	ES
Verbal Memory Test
Correct hit immediate	11.4 ± 3.2	13.6 ± 0.9	1.913	0.097	0.967
Correct passes immediate	12.1 ± 3.2	12.6 ± 2.60	0.661	0.529	0.172
Correct hits delay	8.5 ± 5.6	11.9 ± 1.6	1.478	0.183	0.820
Correct passes delay	11.5 ± 3.3	12.1 ± 2.7	0.615	0.558	0.206
Visual Memory Test
Correct hit immediate	11.1 ± 2.5	11.9 ± 3.2	0.622	0.554	0.263
Correct passes immediate	7.6 ± 3.8	9.1 ± 2.5	1.587	0.156	0.466
Correct hits delay	9.8 ± 4.5	9.6 ± 2.2	0.072	0.945	0.035
Correct passes delay	6.9 ± 3.8	8.0 ± 2.3	0.709	0.501	0.365
Finger Tapping Test
Right taps average	47.6 ± 2.3	50.3 ± 3.7	2.420	0.046	0.844
Left taps average	44.8 ± 5.2	46.9 ± 4.2	2.323	0.053	0.451
Symbol Digit Coding
Correct hits	36.0 ± 7.6	35.3 ± 9.2	0.281	0.787	0.089
Errors	1.8 ± 1.7	3.8 ± 3.2	1.313	0.231	0.784
Stroop Test
Simple reaction time	566 ± 326	464 ± 93	1.072	0.319	0.430
Complex reaction time Correct	739 ± 203	886 ± 128	1.623	0.149	0.865
Stroop reaction time correct	1131 ± 289	1005 ± 138	1.367	0.214	0.557
Stroop commission errors	1.5 ± 0.5	1.9 ± 1.7	0.753	0.476	0.293
Shift Attention Test
Correct responses	25.4 ± 11.4	35.1 ± 13.1	2.654	0.033	0.794
Errors	17.1 ± 8.4	9.6 ± 8.1	2.772	0.028	0.906
Correct reaction time	1311 ± 152	1241 ± 167	1.197	0.270	0.437
Continuous Performance Test
Correct responses	39.9 ± 0.4	39.6 ± 0.7	0.798	0.451	0.429
Omission errors	0.13 ± 0.35	0.38 ± 0.74	0.798	0.451	0.429
Commission errors	0.75 ± 0.89	0.25 ± 0.71	1.080	0.316	0.624
Choice reaction time correct	535 ± 78	541 ± 44	0.268	0.796	0.087

Pre-: preintervention; post: postintervention; ES: effect size.