CHC Clusters (continued) Cluster Stimuli/ Testing Requirements Cognitive Processes Standard %ile Subtest Response Score Interpretation (68% CI) Processing Speed (Gs) ### ## Ability to perform simple/automatic cognitive tasks quickly () RANGE Visual Matching Visual (numbers)/ Rapidly locating and circling identical numbers Speeded visual perception and matching ### ## Motoric (circling) from a defined set of numbers () RANGE Decision Visual (pictures)/ Locating and circling two pictures most similar Object recognition and speeded symbolic/ semantic ### ## Motoric (circling) conceptually in a row comparisons () RANGE Rapid Picture Visual (pictures)/ Recognizing objects, then articulating Speed/fluency of retrieval and oral production of ### ## Oral (words) names rapidly recognized objects Naming () Pair Cancellation ### ## Visual (pictures)/ Identifying and circling instances of a repeated Controlled, focal attention; vigilance Motoric (circling) pattern rapidly () RANGE Short-Term Memory ### ## Apprehend and hold information in immediate awareness and use it within a few seconds (Gsm) () RANGE Numbers Reversed Auditory (numbers)/ Holding a span of numbers in immediate Span of apprehension and recoding in working memory ### ## Oral (numbers) awareness while reversing the sequence () RANGE Auditory Working Auditory (words, numbers)/ Holding a mixed set of numbers and words in Recoding of acoustic, verbalizable stimuli held in ### ## Oral (words, numbers) immediate awareness while reordering into two immediate awareness Memory () RANGE sequences Memory for Words Auditory (words)/ Repeating a list of unrelated words in correct Formation of echoic memories and verbalizable span of 68 2 Oral (words) sequence echoic store (63-74) Very Low
CHC Clusters (continued) Cluster Subtest Stimuli/ Response Testing Requirements Cognitive Processes Standard Score (68% CI) %ile Interpretation Processing Speed (Gs) Ability to perform simple/automatic cognitive tasks quickly ### () ## RANGE Visual Matching Visual (numbers)/ Motoric (circling) Rapidly locating and circling identical numbers from a defined set of numbers Speeded visual perception and matching ### () ## RANGE Decision Visual (pictures)/ Motoric (circling) Locating and circling two pictures most similar conceptually in a row Object recognition and speeded symbolic/ semantic comparisons ### () ## RANGE Rapid Picture Naming Visual (pictures)/ Oral (words) Recognizing objects, then articulating names rapidly Speed/fluency of retrieval and oral production of recognized objects ### () ## Pair Cancellation Visual (pictures)/ Motoric (circling) Identifying and circling instances of a repeated pattern rapidly Controlled, focal attention; vigilance ### () ## RANGE Short-Term Memory (Gsm) Apprehend and hold information in immediate awareness and use it within a few seconds ### () ## RANGE Numbers Reversed Auditory (numbers)/ Oral (numbers) Holding a span of numbers in immediate awareness while reversing the sequence Span of apprehension and recoding in working memory ### () ## RANGE Auditory Working Memory Auditory (words, numbers)/ Oral (words, numbers) Holding a mixed set of numbers and words in immediate awareness while reordering into two sequences Recoding of acoustic, verbalizable stimuli held in immediate awareness ### () ## RANGE Memory for Words Auditory (words)/ Oral (words) Repeating a list of unrelated words in correct sequence Formation of echoic memories and verbalizable span of echoic store 68 (63-74) 2 Very Low
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