The document discusses the Brain Aging Monitor (BAM), a cognitive assessment tool. It compares four BAM tasks (Conveyer Belt, Sunshine, Viewpoint, and Papyrinth) to traditional neuropsychological tests. Results show the BAM tasks have convergent validity with similar traditional tests and divergent validity with dissimilar tests. Alternate forms reliability testing also produced moderate to high reliability coefficients for three of the four BAM tasks.

1. The Brain Aging Monitor
“The cutting edge of science and industry”
T. Aalbers, PhD Student
Department of Geriatric Medicine

10. The business case
teun.aalbers@radboudumc.nl

11. Questions?
teun.aalbers@radboudumc.nl

12. BAM-COG matching
BAM-COG CANTAB Pen and Paper
Conveyer Belt (WM) Spatial Working Memory [1] Letter-Number Sequencing Task from
WAIS-III [2]
Sunshine (VSM) Spatial Span [1] Spatial Span subtest from WMS-III [3]
Viewpoint (ERM) Pattern Recognition [1] Continuous Visual Memory Task [4]
Papyrinth (PL) Stockings of Cambridge [1] Zoo Map Task part of the BADS [4]
1. Robbins TW, James M, Owen AM, Sahakian BJ, McInnes L, Rabbitt P. Cambridge neuropsychological test automated battery (CANTAB): A factor analytic study of a large sample of normal
elderly volunteers, Dementia 1994; 5: 266-281. PMID:7951684
2. Wechsler, D. Wechsler Adult Intelligence Scale-III 1997a San Antonio: The Psychological Corporation
3. Wechsler, D. Wechsler Memory Scale –Third edition: Administration and scoring manual 1997b San Antonio, TX: The Psychological Corporation
4. Deary IJ, Corley J, Gow AJ, Harris SE, Houlihan LM, Marlioni RE, Penke L, Rafnsson SB, Starr JM. Age-associated cognitive decline, Brit Med Bull 2009; 92: 135-152. PMID: 19776035

13. Convergent and Divergent validity
Convergent Validity Divergent Validity
WAIS-III Letter Number
Sequencing
Spatial Working Memory National Adult Reading Test
Conveyer Belt (n=26) ρ=.577 (P =.001) ρ=-.577 (P =.001) ρ=-.029 (P =.44)
WMS-III Spatial Span Task Spatial Span
Sunshine (n=24) ρ=.669 (P <.001) ρ=.620 (P =.001) ρ=-.029 (P =.45)
Continuous Visual Memory
Test
Pattern Recognition
Viewpoint (n=28) ρ=.202 (P =.152) ρ=-.157 (P =.212) ρ=-.162 (P =.21)
BADS Zoo Map Stockings of Cambridge
Papyrinth (n=21) ρ=.400 (P =.036) ρ=.424 (P =.028) ρ=-.134 (P =.28)

14. Alternate Forms Reliability
Alternate Forms Reliability 95% Confidence Interval
Conveyer Belt (n=55) .420 0.17-0.62
Sunshine (n=78) .426 0.23-0.59
Viewpoint (n=101) .167 -0.04-0.36
Papyrinth (n=37) .645 0.41-0.80