To view all CANTAB tests, click here [open/close]   Induction Visual memory Executive function Attention Semantic/Verbal memory Decision making and response control Motor Screening (MOT) Delayed Matching to Sample (DMS) Intra-Extra Dimensional Set Shift (IED) Choice Reaction Time (CRT) Graded Naming Test (GNT) Affective Go/No-go (AGN) Big/Little Circle (BLC) Paired Associates Learning (PAL) One Touch Stockings of Cambridge (OTS) Match to Sample Visual Search (MTS) Verbal Recognition Memory (VRM) Cambridge Gambling Task (CGT)       Pattern Recognition Memory (PRM) Stockings of Cambridge (SOC) Reaction Time (RTI)   Information Sampling Task (IST)       Spatial Recognition Memory (SRM) Spatial Span (SSP) Rapid Visual Information Processing (RVP)   Stop Signal Task (SST)             Spatial Working Memory (SWM) Simple Reaction Time (SRT)

 

Delayed Matching to Sample (DMS)
Overview Delayed Matching to Sample (DMS) assesses forced choice recognition memory for novel non-verbalisable patterns, and tests both simultaneous and short term visual memory. This test is primarily sensitive to damage in the medial temporal lobe area, with some input from the frontal lobes.
click for an interactive demonstration	Administration time Around 10 minutes. Task The subject is shown a complex visual pattern (the sample) and then, after a brief delay, four similar patterns. The subject must touch the pattern which exactly matches the sample. Test modes Clinical mode (for testing once); five parallel modes (for repeated testing) and child mode (a simplified version for testing children)
Outcome measures This test has nineteen outcome measures, assessing latency (the subject's speed of response), the numbers of correct patterns selected, and statistical analysis measuring the probabability of an error after a correct or incorrect response.

 

Paired Associates Learning (PAL)
Overview This challenging test assesses visual memory and new learning, and is a useful tool for assessing patients with questionable dementia, Mild Cognitive Impairment, Alzheimer's Disease, and age-related memory loss.
click for an interactive demonstration	Administration time Around 10 minutes, depending on level of impairment Task Boxes are displayed on the screen and are opened in a randomised order. One or more of them will contain a pattern. The patterns are then displayed in the middle of the screen, one at a time, and the subject must touch the box where the pattern was originally located. If the subject makes an error, the patterns are re-presented to remind the subject of their locations. The difficulty level increases through the test. In the clinical mode, the number of patterns increases from one to eight, which challenges even very able subjects. Test modes Clinical mode (for testing once); five parallel modes (for repeated testing).
Outcome measures This test has twenty-one outcome measures, covering the errors made by the subject, the number of trials required to locate the pattern(s) correctly, memory scores and stages completed.

 

Pattern Recognition Memory (PRM)
Overview This is a test of visual pattern recognition memory in a 2-choice forced discrimination paradigm. This test is often used, in conjunction with Spatial Recognition Memory (SRM) , before the Paired Associates Learning (PAL) test, as both these tests help to train the subject for PAL. PRM and SRM contain different elements of PAL and the results considered together help to decide on the exact nature of the cognitive deficit being considered.
click for an interactive demonstration	Administration time Around 5 minutes, depending on level of impairment Task The subject is presented with a series of 12 visual patterns, one at a time, in the centre of the screen. These patterns are designed so that they cannot easily be given verbal labels. In the recognition phase, the subject is required to choose between a pattern they have already seen and a novel pattern. In this phase, the test patterns are presented in the reverse order to the original order of presentation. This is then repeated, with 12 new patterns. The second recognition phase can be given either immediately or after a 20 minute delay. Test modes Clinical mode (for testing once); four parallel modes (for repeated testing). Each of these modes also has separate immediate and delayed versions available.
Outcome measures This test has three outcome measures, including the number and percentage of correct trials and latency (speed of subject’s response).

 

Spatial Recognition Memory (SRM)
Overview This is a test of visual spatial recognition memory in a 2-choice forced discrimination paradigm. This test is often used, in conjunction with Pattern Recognition Memory (PRM) , before the Paired Associates Learning (PAL) test, as both these tests help to train the subject for PAL. PRM and SRM contain different elements of PAL and the results considered together help to decide on the exact nature of the cognitive deficit being considered.
click for an interactive demonstration	Administration time Around 5 minutes, depending on level of impairment Task The subject is presented with a white square, which appears in sequence at five different locations on the screen. In the recognition phase, the subject sees a series of five pairs of squares, one of which is in a place previously seen in the presentation phase. The other square is in a location not seen in the presentation phase. As with the PRM test, locations are tested in the reverse of the presentation order. This sub-test is repeated three more times, each time with five new locations Test modes Clinical mode (for testing once); four parallel modes (for repeated testing).
Outcome measures This test has three outcome measures, including the number and percentage of correct trials and latency (speed of subject’s response).