Memory Span Measurement
Memory Span Measurement - Related Videos
06:44
Measuring Verbal Working Memory Span
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Why is it relatively hard to remember everything on a shopping list if it includes more than just a handful of items? Why is it possible to remember a phone number that one just heard, but not two or three phone numbers at once? Why is it difficult to remember names when several new people are introduced at the same time? The answer has to do with the fact that over short-durations people rely on a specialized memory system...
12:41
Measuring Replicative Life Span in the Budding Yeast
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Cited by 168 •
2009
In this article we present a general protocol for measuring the replicative life span of yeast mother cells.
09:05
Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)
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Cited by 26 •
2017
Working memory predicts a significant amount of variance for a variety of cognitive tasks, including speaking, reading, and writing. However, few tools are available to assess working memory in children. We present an innovative, computer-based battery that comprehensively assesses different components of working memory in school-age children.
09:29
Drosophila Courtship Conditioning As a Measure of Learning and Memory
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Cited by 60 •
2017
This protocol describes a Drosophila learning and memory assay called courtship conditioning. This classic assay is based on a reduction of male courtship behavior after sexual rejection by a non-receptive premated female. This natural form of behavioral plasticity can be used to test learning, short-term memory, and long-term memory.
12:49
Measuring Caenorhabditis elegans Life Span on Solid Media
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Cited by 201 •
2009
In this article we present a general protocol for measuring life span of nematodes maintained on solid media with UV-killed bacterial food.
FAQs
Correct order makes the task sensitive to more than the number of items remembered. A participant must briefly retain the sequence and reproduce its structure, so an answer containing the same items in a different arrangement does not meet the task requirement. This helps identify the sequence length at which immediate retention begins to break down.
Attention and encoding strategies can affect performance independently of a person’s underlying memory capacity. Someone who focuses carefully or organizes the material effectively may reproduce a longer sequence, whereas reduced attention can lower performance. For this reason, results should be understood alongside the task conditions and material complexity rather than treated as a completely isolated measure.
Digits, letters, words, and spatial locations place different demands on brief retention and reproduction. The complexity and format of the material can therefore influence how easily participants encode and recall a sequence. Comparing performance across formats may help researchers examine how the content of information interacts with short-term and working memory performance.
A researcher presents a sequence of digits, letters, words, or spatial locations for the participant to hear or see. The participant recalls the items immediately and in the required order. Sequence length then increases across trials or stages until errors appear, allowing the researcher to identify the level at which accurate reproduction is no longer maintained.
These tasks support research on cognitive development, aging, learning, and individual differences. Researchers can examine how immediate retention changes across people or across stages of life, and how performance relates to learning or broader cognitive functioning. Because the task produces a clear performance limit, it offers a practical way to compare memory-related outcomes.
Clinicians may include memory span tasks within broader assessments of attention and memory. The result can contribute information about immediate retention and ordered recall, but it should be interpreted in the context of the material, attention, and encoding strategies involved. Its value comes from complementing other assessment information rather than serving as a complete evaluation by itself.