-----Variables Ordered by Position-----
# Variable Type Len Pos Format Label
--------------------------------------------------------------------------------
-------
1 ID Num 4 0 4. BLSA Identification
2 VI Num 4 4 4.1 BLSA Visit number
3 MRTETOH Num 4 8 1. MRT ethanol condition
4 MRTTECH Num 4 12 1. Experimenter
5 MRTORDR Num 4 16 1. MRT Order of administration
6 MRTFRIRE Num 4 20 5.2 ImmRecall: # recalled (mean)
7 MRTFRIIN Num 4 24 2. ImmRecall: # intrusions
8 MRTFRIPR Num 4 28 5.2 ImmRecall: primary mem (mean)
9 MRTFRISE Num 4 32 5.2 ImmRecall: secondary mem
(mean)
10 MRTFRIRV Num 4 36 5.2 ImmRecall: variance among
trials
11 MRTFRIXE Num 4 40 3. ImmRecall: # extraneous
intrusions
12 MRTFRIXR Num 4 44 3. ImmRecall: # repeated
intrusions
13 MRTFRIX1 Num 4 48 3. ImmRecall: # intrusions
from day one
14 MRTFRIX2 Num 4 52 3. ImmRecall: # intrusions
from day two
15 MRTFRIXT Num 4 56 3. ImmRecall: # intrusions
(ext+da1+da2)
16 MRTFRDRE Num 4 60 5.2 DelRecall: # recalled (mean)
17 MRTFRDIN Num 4 64 2. DelRecall: # intrusions
18 MRTFRDPR Num 4 68 5.2 DelRecall: primary mem (mean)
19 MRTFRDSE Num 4 72 5.2 DelRecall: secondary mem
(mean)
20 MRTFRDXE Num 4 76 3. DelRecall: # extraneous
intrusions
21 MRTFRDXR Num 4 80 3. DelRecall: # repeated
intrusions
22 MRTFRDX1 Num 4 84 3. DelRecall: # intrusions
from day one
23 MRTFRDX2 Num 4 88 3. DelRecall: # intrusions
from day two
24 MRTFRDXT Num 4 92 3. DelRecall: # intrusions
(ext+da1+da2)
25 MRTDREHI Num 4 96 3.1 DelRecogn: #hits (mean)
26 MRTDREMI Num 4 100 3.1 DelRecogn: #false pos (mean)
27 MRTDRENE Num 4 104 3.1 DelRecogn: #false neg (mean)
28 MRTDIGTO Num 4 108 5.2 DigitSpan: Total (avg four adms)
29 MRTDIGCO Num 4 112 5.2 DigitSpan: Consecutive
(avg four adms)
30 MRTDIGMX Num 4 116 5.2 DigitSpan: Longest span
(avg four adms)
31 MRTDIGTX Num 4 120 1. DigitSpan: Total (max four adms)
32 MRTDIGCX Num 4 124 1. DigitSpan: Consecutive
(max four adms)
33 MRTDIGXX Num 4 128 1. DigitSpan: Longest span
(max four adms)
34 MRTDIGTV Num 4 132 5.2 DigitSpan: Total (var four adms)
35 MRTDIGNV Num 4 136 5.2 DigitSpan: Consecutive
(var four adms)
36 MRTDIGXV Num 4 140 5.2 DigitSpan: Longest span
(var four adms)
37 MRTDICTO Num 4 144 6.2 DichotLis: #right (mean)
38 MRTRETT1 Num 4 148 6.2 ResponTim: task one (mean)
39 MRTRETT2 Num 4 152 6.2 ResponTim: task two (mean)
40 MRTRETT3 Num 4 156 6.2 ResponTim: task three (mean)
41 MRTRETT4 Num 4 160 6.2 ResponTim: task four (mean)
42 MRTRETT5 Num 4 164 6.2 ResponTim: task five (mean)
43 MRTRETV1 Num 4 168 6.2 ResponTim: task one (var)
44 MRTRETV2 Num 4 172 6.2 ResponTim: task two (var)
45 MRTRETV3 Num 4 176 6.2 ResponTim: task three (var)
46 MRTRETV4 Num 4 180 6.2 ResponTim: task four (var)
47 MRTRETV5 Num 4 184 6.2 ResponTim: task five (var)
48 MRTRETE1 Num 4 188 6.2 ResponTim: task one (omissions)
49 MRTRETE2 Num 4 192 6.2 ResponTim: task two (omissions)
50 MRTRETE3 Num 4 196 6.2 ResponTim: task three (omissions)
51 MRTRETE4 Num 4 200 6.2 ResponTim: task four (omissions)
52 MRTRETE5 Num 4 204 6.2 ResponTim: task five (omissions)
53 MRTRETC1 Num 4 208 6.2 ResponTim: task one
(commissions)
54 MRTRETC2 Num 4 212 6.2 ResponTim: task two
(commissions)
55 MRTRETC3 Num 4 216 6.2 ResponTim: task three
(commissions)
56 MRTRETC4 Num 4 220 6.2 ResponTim: task four
(commissions)
57 MRTRETC5 Num 4 224 6.2 ResponTim: task five
(commissions)
58 MRTFRSTO Num 4 228 7.2 FreRecTim: mean trial latency
Transition to SAS
14:47 Saturday, June 28, 1997 15
Revise WAIS VOC export file (IDVI only)
Variable Label N Mean
Std Dev Minimum Maximum
--------------------------------------------------------------------------------
--------------------------
ID BLSA Identification 1709 2447.56
2144.85 15.00 5601.00
VI BLSA Visit number 1709 6.35
4.95 1.00 22.00
MRTETOH MRT ethanol condition 1709 1.26
0.86 1.00 7.00
MRTTECH Experimenter 1709 3.84
1.60 1.00 6.00
MRTORDR MRT Order of administration 1709 2.48
1.12 1.00 4.00
MRTFRIRE ImmRecall: # recalled (mean) 1694 5.19
1.32 1.00 11.25
MRTFRIIN ImmRecall: # intrusions 1694 0.85
0.88 0.00 12.25
MRTFRIPR ImmRecall: primary mem (mean) 1694 2.48
0.83 0.00 5.00
MRTFRISE ImmRecall: secondary mem (mean) 1694 2.71
1.04 0.00 6.50
MRTFRIRV ImmRecall: variance among trials 1694 1.42
1.32 0.00 18.00
MRTFRIXE ImmRecall: # extraneous intrusions 1628 2.56
2.73 0.00 44.00
MRTFRIXR ImmRecall: # repeated intrusions 1628 0.14
0.48 0.00 7.00
MRTFRIX1 ImmRecall: # intrusions from day one 1628 0.13
0.44 0.00 5.00
MRTFRIX2 ImmRecall: # intrusions from day two 1628 0.57
0.95 0.00 9.00
MRTFRIXT ImmRecall: # intrusions (ext+da1+da2) 1628 3.27
3.34 0.00 45.00
MRTFRDRE DelRecall: # recalled (mean) 1694 2.94
1.57 0.00 10.00
MRTFRDIN DelRecall: # intrusions 1694 1.59
1.63 0.00 15.00
MRTFRDPR DelRecall: primary mem (mean) 1694 1.07
0.79 0.00 4.00
MRTFRDSE DelRecall: secondary mem (mean) 1694 1.87
1.13 0.00 7.00
MRTFRDXE DelRecall: # extraneous intrusions 1628 1.77
2.08 0.00 17.00
MRTFRDXR DelRecall: # repeated intrusions 1628 0.12
0.47 0.00 6.00
MRTFRDX1 DelRecall: # intrusions from day one 1628 0.19
0.54 0.00 5.00
MRTFRDX2 DelRecall: # intrusions from day two 1628 1.08
1.37 0.00 8.00
MRTFRDXT DelRecall: # intrusions (ext+da1+da2) 1628 3.04
3.00 0.00 26.00
MRTDREHI DelRecogn: #hits (mean) 1691 9.10
1.50 2.50 12.00
MRTDREMI DelRecogn: #false pos (mean) 1691 2.29
1.55 0.00 9.50
MRTDRENE DelRecogn: #false neg (mean) 1691 2.90
1.50 0.00 9.50
MRTDIGTO DigitSpan: Total (avg four adms) 1707 4.62
1.17 0.00 7.00
MRTDIGCO DigitSpan: Consecutive (avg four adms) 1707 4.33
1.21 0.00 7.00
MRTDIGMX DigitSpan: Longest span (avg four adms) 1707 4.89
1.19 0.00 7.00
MRTDIGTX DigitSpan: Total (max four adms) 1707 5.35
1.21 0.00 7.00
MRTDIGCX DigitSpan: Consecutive (max four adms) 1707 5.26
1.26 0.00 7.00
MRTDIGXX DigitSpan: Longest span (max four adms) 1707 5.71
1.19 0.00 7.00
MRTDIGTV DigitSpan: Total (var four adms) 1707 0.64
0.55 0.00 4.67
MRTDIGNV DigitSpan: Consecutive (var four adms) 1707 1.09
1.06 0.00 8.00
MRTDIGXV DigitSpan: Longest span (var four adms) 1707 0.79
0.72 0.00 4.92
MRTDICTO DichotLis: #right (mean) 1611 27.53
1.41 6.50 28.00
MRTRETT1 ResponTim: task one (mean) 1701 0.35
0.06 0.23 0.83
MRTRETT2 ResponTim: task two (mean) 1701 0.45
0.05 0.30 0.88
MRTRETT3 ResponTim: task three (mean) 1701 0.52
0.07 0.36 0.89
MRTRETT4 ResponTim: task four (mean) 1692 0.58
0.11 0.37 1.36
MRTRETT5 ResponTim: task five (mean) 1680 0.70
0.13 0.40 1.57
MRTRETV1 ResponTim: task one (var) 1701 0.01
0.01 0.00 0.12
MRTRETV2 ResponTim: task two (var) 1701 0.00
0.01 0.00 0.13
MRTRETV3 ResponTim: task three (var) 1701 0.01
0.01 0.00 0.10
MRTRETV4 ResponTim: task four (var) 1692 0.03
0.03 0.00 0.41
MRTRETV5 ResponTim: task five (var) 1680 0.05
0.04 0.00 0.33
MRTRETE1 ResponTim: task one (omissions) 1702 0.02
0.18 0.00 4.50
MRTRETE2 ResponTim: task two (omissions) 1702 0.03
0.31 0.00 6.50
MRTRETE3 ResponTim: task three (omissions) 1702 0.13
0.41 0.00 7.50
MRTRETE4 ResponTim: task four (omissions) 1702 1.02
1.86 0.00 12.50
MRTRETE5 ResponTim: task five (omissions) 1702 2.66
2.44 0.00 15.00
MRTRETC1 ResponTim: task one (commissions) 1701 0.04
0.17 0.00 2.50
MRTRETC2 ResponTim: task two (commissions) 1701 0.17
0.36 0.00 5.00
MRTRETC3 ResponTim: task three (commissions) 1701 0.48
0.63 0.00 4.50
MRTRETC4 ResponTim: task 4 (commissions) 1692 1.21
1.52 0.00 13.00
MRTRETC5 ResponTim: task 5 (commissions) 1681 1.45
1.74 0.00 21.00
MRTFRSTO FreRecTim: mean trial latency 1693 11.52
8.97 1.50 92.60
--------------------------------------------------------------------------------
--------------------------
---
DESCRIPTIVE HISTORY:
The following set of memory and decision tasks was introduced in 1978:
Single-trial, immediate free recall (IMFR). Each of four lists consists of twelve
familiar nouns. After the words are shown paced, the task is to report as many
words as possible.
Forward digit memory. The task is to recall, in order, lists of three to nine
digits presented auditorily.
Delayed memory. After each IMFR list and an interpolated task (forward digit
memory), one of two delayed memory procedures is administered. In delayed free
recall, the task is to report as many of the words as possible from the
previous
IMFR list. In delayed recognition, the twelve words from the previous IMFR list and
twelve distractor words are shown one at a time, and the task is to decide whether
the word has already been presented.
Dichotic listening. The task is to identify two digits present simultaneously,
one to each ear. Each set consists of 28 pairs.
Decision tasks. These tasks require response to the visual presentation of
designated digits under five different conditions. With the exception of the
first task, the display is paced at a rate of one digit per second. The first
task is to respond to the onset of a zero. The second is to respond to a
specified digit. The third is to respond to any even or odd digit. The
fourth is to respond to an even-odd or odd-even sequence of digits, and the fifth to
respond to any two consecutive even or consecutive odd digits. Decision
time and accuracy are the measures. The same set of tasks, with different word lists, were
repeated every six years.
---
DATA COLLECTION INSTRUMENT, METHOD, OR MEDIUM:
---
RELATED PROTOCOLS:
None
---
Investigators:
David Arenberg
---
Frequency of collection: Every 6 years
---
Inclusion & exclusion rules: None
---
Publications using these data:
Alan Zonderman abz@lpc.grc.nia.nih.gov
Laboratory of Personality & Cognition, National Institute on Aging, NIH
JM -
Disclaimer
Revised 12/09/98 -- Send comments to our
Web Master
.