We hope to recruit participants into various clinical trials and research projects.
The purpose of this protocol is to advertise, recruit, and do a preliminary screen for various clinical trials. Anonymous information collected will be entered in a database available to researchers connected with the Stanford/VA Aging Clinical Research Center, located at VA Palo Alto Health Care System, Palo Alto Division.
Study Type
OBSERVATIONAL
Enrollment
1
Memory Screening test
VA Palo Alto Health Care System
Palo Alto, California, United States
Memory Impairment
The primary outcome measure on a 50 item Continuous Recognition Task with 25 repeated items, first display of an item is 3 seconds, new image immediately after a response (MemTrax, see: reference), is number of HITs (a memory measure). Less than 20 suggests memory impairment and will trigger referral to a memory study.
Time frame: 90 seconds to 150 seconds (normal less than 100 seconds)
Processing speed measurement with MemTrax
Secondary outcome measure is response time to HITs (a measure of memory processing speed), usually 0.550 to 1.5 seconds. Slower than 1.2 seconds suggests a memory, attention, or processing speed problem, will also trigger a referral to the memory study. Note, a third measure, number of Correct Rejections (a measure of executive function), is used to validate the first and second outcome measures. Values below 20 suggest that the other measures might not be valid.
Time frame: 90 - 150 seconds (normal - 95 seconds)
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