The CPT-II software tracks the rate of omission errors (failing to press the space key when appropriate), commission errors (pressing the space key when inappropriate), and perseverations
(a reaction time to any stimulus that is < 100 milliseconds).
The total execution time, total correct and error scores, and the types of errors (distortions, omissions, perseverations
, rotations, and misplacements) for both copy and memory tasks were analyzed.
In the verbal fluency tasks the following measures were collected: the number of words evoked, the number of intrusions, and the number of perseverations
No item palavra, solicitou-se a busca pelos termos stuttering, stammering, fluency disorders, disfluency e perseverations
Despite the absence of the above-mentioned typical conversational markers, findings by Dobbinson, Perkins, and Boucher (2003) provide consistent support for the notion that children with autism use verbal perseverations
with communicative intent, as a means of social interaction.
Experiencing their perseverations
over seven seasons has been, at times, unbelievably frustrating: Tommy's two concubines approach and repel him like magnets that reverse their charges each morning, Pasquale and Lombardi's characters rarely stray far from low comedy, andthe see-saw on which every other episode seems to hingeTommy routinely jumps on and off the wagon.
Scores derived from the test were the total number of missed responses (omissions), false positives (commissions), perseverations
(repeated hits), and the overall average reaction time.
Errors or slips in any domain tend to be classifiable as anticipations (a unit appearing too early), perseverations
(a recurring element), exchanges (or metatheses) of elements, or substitutions of one element for another (such as calling one person by another person's name).
Groups were compared separately on the number of close errors in difficult single target search and on the number of perseverations
in alternating search, using VMA as a covariate in each case.
Sensory * Tactile defensiveness * Hypersensitivity to smells, tastes, sounds * Visual fixations * Perseverations
Effective Strategies for Compliance * Ability to imitate or role model * Effective distraction techniques--counting, favorite songs * Previous medical experiences--positive and negative * Need for restraint with certain procedures Table 4.
When non-perseverative intrusions are more frequent than perseverations
, performance in the non-identical condition tends to be inflated (and therefore, chances to observe RD are artificially augmented).
The total number of words generated was obtained by counting the number produced by each participant excluding perseverations
, errors, and proper nouns.