Memory Scale (WMS-IV) Visual and Verbal Memory Flashcards

The Wechsler Memory Scale–Fourth Edition (WMS-IV) is designed for use with individuals in which age range?

Answer: 16:0–90:11

The WMS-IV is standardized for individuals aged 16:0 through 90:11, mirroring the WAIS-IV age range to facilitate joint cognitive and memory profiling.

Which WMS-IV subtest assesses the ability to recall a story immediately after it is read by the examiner?

Answer: Logical Memory I

Logical Memory I assesses immediate recall of a story read by the examiner, measuring meaningful verbal memory using contextually organized narrative material.

On the WMS-IV, which composite score reflects the ability to learn and retain visually presented spatial information?

Answer: Visual Memory Index

The Visual Memory Index (VMI) reflects performance on visual memory subtests (Designs I/II and Visual Reproduction I/II at immediate and delayed recall) and measures the ability to encode and retain visual information.

What is measured by the WMS-IV Auditory Memory Index (AMI)?

Answer: Immediate and delayed recall of verbally presented story and word-pair information

The AMI reflects performance on Logical Memory and Verbal Paired Associates at immediate and delayed recall, measuring the ability to encode and retain verbally presented information.

The WMS-IV Verbal Paired Associates subtest measures which type of memory?

Answer: Associative verbal learning across multiple trials

Verbal Paired Associates measures associative verbal learning by presenting word pairs across multiple learning trials and then testing recall of the second word when given the first word.

Which WMS-IV subtest requires the examinee to remember the locations of abstract designs on a grid?

Answer: Designs I and II

Designs I and II require the examinee to recall the identity and spatial location of abstract designs placed on a grid, measuring both design recognition and spatial memory.

What does the WMS-IV Delayed Memory Index (DMI) specifically measure?

Answer: Retention of information after a 20–30 minute delay interval

The DMI is based on delayed recall scores (after a 20–30 minute filled delay) from the memory subtests, measuring the ability to retain learned information over time.

Which WMS-IV subtest is administered in the Older Adult Battery but NOT in the standard Adult Battery?

Answer: Visual Reproduction

Visual Reproduction is included in the Older Adult Battery (ages 65–90) instead of the Designs subtest, as Visual Reproduction's figure-drawing format may be better suited for older adults.

What is the primary clinical significance of a large discrepancy between Immediate Memory Index (IMI) and Delayed Memory Index (DMI) on the WMS-IV?

Answer: It suggests rapid forgetting, which is highly characteristic of hippocampal dysfunction

When the DMI is significantly lower than the IMI, it suggests rapid forgetting after an initial delay—a hallmark of hippocampal or medial temporal lobe dysfunction seen in Alzheimer's disease and other amnestic disorders.

The WMS-IV Visual Working Memory Index (VWMI) is derived from which subtests?

Answer: Spatial Addition and Symbol Span

The Visual Working Memory Index (VWMI) is derived from Spatial Addition (novel spatial working memory task) and Symbol Span (visual span task), measuring the capacity to hold and manipulate visual information in working memory.

In WMS-IV interpretation, what does a significantly lower AMI than VMI typically suggest in terms of brain dysfunction localization?

Answer: Left hemisphere and left temporal lobe memory dysfunction

A significantly lower AMI than VMI (verbal worse than visual memory) is classically associated with left hemisphere, particularly left temporal lobe, dysfunction affecting verbal learning and memory systems.

Which WMS-IV recognition trial is used to distinguish between encoding/storage failure and retrieval failure?

Answer: Verbal Paired Associates II Recognition

The VPA II Recognition trial presents word pairs (targets and foils) for yes/no recognition, helping determine whether poor recall is due to storage failure (also poor recognition) or retrieval failure (poor recall but intact recognition).

What psychometric standard are WMS-IV composite scores expressed in?

Answer: Standard scores (mean=100, SD=15)

WMS-IV index composite scores are expressed as standard scores with a mean of 100 and a standard deviation of 15, consistent with Wechsler intelligence test composites.

Which WMS-IV subtest measures the ability to hold and recall a sequence of visual symbols in order?

Answer: Symbol Span

Symbol Span requires the examinee to view a sequence of novel symbols and then identify them in the correct order from a larger array, measuring visual symbolic span and working memory.

In neuropsychological assessment using the WMS-IV, which deficit pattern is most consistent with a diagnosis of amnestic mild cognitive impairment (aMCI)?

Answer: Isolated delayed memory impairment with relatively preserved immediate learning and general intelligence

Amnestic MCI characteristically presents with isolated impairment in delayed memory (particularly DMI) while immediate learning, attention, and general intellectual functioning remain relatively preserved.

When comparing a patient's WMS-IV memory performance to their WAIS-IV intellectual ability, which condition would a large WAIS-IV FSIQ > WMS-IV index discrepancy suggest?

Answer: A clinically significant memory impairment relative to intellectual level

When WAIS-IV FSIQ is substantially higher than WMS-IV memory indices, it indicates that memory functioning is impaired relative to the patient's overall intellectual level, suggesting acquired or developmental memory dysfunction.

Which WMS-IV feature allows examiners to distinguish between content memory and spatial memory in visual recall tasks?

Answer: Designs I includes separate Content and Spatial recall scores

Designs I and II provide separate Content scores (correct designs recalled) and Spatial scores (correct placement on grid), allowing clinicians to dissociate memory for what was presented from memory for where it appeared.

The WMS-IV Logical Memory II Recognition task uses which format?

Answer: Yes/no recognition for story details presented as statements

Logical Memory II Recognition presents statements about story content, and the examinee answers yes or no to indicate whether each detail was part of the original story, measuring recognition memory for narrative details.

How is the WMS-IV Retention Index conceptually different from the Delayed Memory Index?

Answer: Retention Index measures rate of forgetting (delayed/immediate ratio) rather than absolute delayed performance

The Retention Index calculates a ratio of delayed to immediate performance, measuring how much of the initially learned information was retained over the delay—quantifying the rate of forgetting rather than absolute level.

Which condition is associated with a pattern of low WMS-IV scores but normal recognition performance (retrieval > storage deficit)?

Answer: Frontal-subcortical dysfunction (e.g., Parkinson's disease)

Frontal-subcortical dysfunction, as seen in Parkinson's disease, Huntington's disease, and subcortical vascular dementia, tends to produce recall deficits due to retrieval failure, with relatively preserved recognition memory.