As a platform for digital cognitive tests, ∆elta strives to implement all the well known and validated cognitive tests and scales that are used in neuropsychiatric assessments.

Confrontational Naming

Confrontational naming tests are common language assessments. Confrontation naming involves the selection of a specific label corresponding to a viewed stimulus, usually a picture, of a viewed object or action. Confrontation naming also refers to a type of task used in assessment when problems with naming are of concern.

Semantic Verbal Fluency

Verbal fluency is a cognitive function that facilitates information retrieval from memory. Successful retrieval requires executive control over cognitive processes such as selective attention, selective inhibition, mental set shifting, internal response generation, and self-monitoring. Tests of verbal fluency evaluate an individual’s ability to retrieve specific information within restricted search parameters (Lezak, Howieson, Loring, Hannay, & Fischer, 2004).

Digit Span

Digit Span tests assess working memory and/or the ability to retain and keep in mind a circumscribed amount of information for a short period of time (Wechsler, 1997).

Picture Description

Picture Description tasks are used to obtain information about the patient’s ability to make sense of a visual situation and to formulate and produce cohesive and topically relevant narratives (Brookshire, 2003).

Word List Learning

List-learning tasks share many design features. The number of words in the to-be-learned list (e.g., 12–16 items) has been designed to exceed the typical vigilance span of seven items and to stress learning demands. The learning phase is the presentation of the list across several trials. Following each trial, the examinee is asked to recall as many items as possible. Once the learning is complete, a short time interval elapses, usually including interference tasks designed to prevent rehearsal of the list items. The examinee is then asked to recall items from the list, constituting a short term recall. After another longer interval, again containing some distraction, a recall is requested. These short- and long-term retrieval assessments capture the examinee’s ability to store, consolidate, and maintain information, as well as to retrieve it on command. Tests can include a subsequent multiple- or forced-choice task to facilitate access, capturing the items that were encoded but could not be accessed on free retrieval.

Free Cued Selective Reminding

The FCSRT is similar to classical word list learning tests but adopts an alternate use of semantic organization by cueing examinees with the semantic category while the word is being learned and by promoting the category immediately afterwards.

Trail Making Test

(Requires the Apple Pencil)

The Trail Making Test (TMT) is a measure of attention, processing speed, and mental flexibility. The test has two forms: one for children aged 9–14 and another for adults aged 15 and above. On part A, examinees are required to connect 25 encircled numbers that have been randomly placed on a page in proper order. They must complete the task within 5 min. On part B, examinees are required to connect the encircled numbers and letters in alternating order, again within 5 min. Examinees are instructed to connect the circles as fast they can without making mistakes or lifting the pencil from the paper.

Copying Figures

(Requires the Apple Pencil)

The Copying Figures Test comprises a copy trial of the figure followed by one or more recall trials. Administration of the copy trial requires examinees to draw a copy of the figure that is presented on the table in front of them. The examinee is asked to reproduce the figure to the best of his or her ability; however, no rotation of the stimulus or measuring instruments is allowed.

Clock Drawing

(Requires the Apple Pencil)

Clock Drawing Test (CDT) is a widely used and popular neuropsychological test. Rubin, Barr, and Burton (2005) reported that the CDT appears in the top 40 tests most commonly used by neuropsychologists. The CDT is often considered to be a visuoconstructional test. Modern versions of the CDT usually contain at least two parts clock drawing to command and clock drawing to copy. In the command condition, patients are presented with a blank sheet of paper and are asked to ‘‘draw the face of a clock showing the numbers and the two hands set for ten after eleven.’’ In the copy condition, a pre-drawn model of a clock with numbers and hands set for 10 after 11 is presented, and the patient is asked to copy the model.

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