![]() The size of an expert's vocabulary of chess-related configurations was estimated to be an incredible 50,000 to 100,000 chunks! Using a type of brain scanning known as functional magnetic resonance imaging (fMRI), we have shown that the lateral prefrontal cortex contributes to our ability to chunk information (Bor et al., 2003). These experts seem to use their knowledge to create meaningful chunks, consisting of several chess pieces, thereby increasing the capacity of their visuospatial memory. In one study, chess masters were shown a chess board configuration for only a few seconds and were much more able to accurately recreate the same configuration than non-expert players (Simon & Gilmartin, 1973). It is this process that is thought to underlie the expert abilities of chess masters. Chunking involves recoding items into memorable clusters of information. Participants start out with three 3-digit sequences. Please cite the paper ( ) if using the tests or the data.Our research, and several classic studies in the neuroscientific literature, have shown that visuospatial memory can be improved through "chunking" strategies. In this task participants are required to memorise and recall number series in order. Results from the task can either be stored locally or on a server (through use of an included. Please download all folders in this directory for use of any of the tasks (i.e., 'jspsych-6.0.4' and 'img'). ![]() Easily customizable variables have been listed at the top of each code. Įach of these tasks can be customized to some extent (number of trials, set size in trials, trial duration etc). It is frequently used in hospitals and physicians' offices in order for a clinician to quickly evaluate whether a patient's cognitive abilities are normal or impaired. A demonstration of the task can be viewed here. The digit span test is a very short test that evaluates a person's cognitive status. Participants are required to memorize locations of colored squares on a grid while simultaneously performing simple symmetry judgement decisions. This practice book includes exercises for one of the new primary subtests, the Picture Span Subtest. The purpose of the test is to determine whether or not the child is gifted, as well as the students cognitive strengths and weaknesses. Methods from this task resemble those described in Oswald et al (2014 ). The WISC®-V assessment takes between 50 and 65 minutes to complete. This is a visuo-spatial WM processing task. A demonstration of the task can be viewed here. Participants have to quickly memorize colors of squares and detect changes. ![]() Other authors have used 1 second, which makes it harder to apply encoding/decoding techniques. Methods from this test resemble those described in Cowan et al (2006 ). The digit span was tested with 2 second intervals, which probably helped with learning a bit. Participants are required to memorize a string of letters while simultaneously performing simple mathematical calculations. Methods from this task resemble those described in Oswald et al (2014 ). This is a verbal-numeric WM processing task. A demonstration of the task can be viewed here. Prevalence of Two-Syllable Digits Affecting Forward Digit Span Test Score: A Potential Reliability Factor in Digit Span Tests and New Light to the Word Length. Participants are required to memorize a string of digits and recall them. Methods from this test resemble those descibed in Woods et al (2011 ). This is a verbal-numeric WM storage task. Het wordt vaak gebruikt in ziekenhuizen en artsenpraktijken zodat een arts snel kan beoordelen of de cognitieve vaardigheden van een patiënt normaal of verzwakt zijn. However, given that online experiments have less controlled environments, the reliability of WM measures might be affected.ĭigit span test. De digit span test is een zeer korte test die de cognitieve status van een persoon evalueert. Since these tasks are browser based, they can be conveniently used for online experiments (e.g., on MTurk). Paper resulting from these experiments can be found here. These WM tests have previously been used in lab experiments (data from experiments is included in directory). All have been designed on JavaScript using the jsPsych library ( ). Working memory experiment tasks designed on JavaScriptįour classic working memory (WM) tests are included in this directory.
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