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Working Memory

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Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this information.

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When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.

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Related Experiment Video

Updated: May 18, 2026

Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)

Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)

Published on: June 12, 2017

Keeping timbre in mind: working memory for complex sounds that can't be verbalized.

Jason L Golubock¹, Petr Janata

¹Department of Psychology, University of California, Davis, CA 95618, USA.

Journal of Experimental Psychology. Human Perception and Performance

|September 12, 2012

Summary

Auditory working memory for abstract sounds is limited to 1-2 items, but capacity increases with greater sound variability. This research explores nonverbalizable auditory memory limits.

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Area of Science:

Cognitive Psychology
Auditory Perception
Memory Research

Background:

Auditory working memory (AWM) for sounds without strong semantic links or easy verbalization is not well understood.
Existing research often focuses on verbalizable or musically structured auditory information.

Purpose of the Study:

To investigate AWM capacity for abstract, nonverbalizable sounds.
To determine how perceptual variability among sounds affects AWM capacity.
To establish boundary conditions for AWM of abstract auditory stimuli.

Main Methods:

Experiment 1: Assessed AWM capacity for 2-6 abstract sounds with short delays (1-6s).
Experiment 2: Examined the impact of increased perceptual variability among sounds on AWM capacity at similar delays.
Utilized synthesized sounds within a constrained timbral space.

Main Results:

Working memory capacity estimates consistently ranged from 1-2 items across conditions.
AWM capacity significantly increased with greater perceptual variability among the abstract sounds.
Capacity estimates were lower than the typical 3-5 item limit observed for other memory types.

Conclusions:

AWM for nonverbalizable, abstract sounds has a limited capacity.
Perceptual distinctiveness is a key factor influencing AWM capacity for such sounds.
Findings refine our understanding of AWM limitations for stimuli lacking strong long-term memory associations.