Sensory Memory
Sensory Memory - Related Videos
01:14
Sensory Memory
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2025
Sensory memory captures information from the environment in its original form for a very brief duration, just long enough to be exposed to visual, auditory, and other senses. This type of memory is detailed and rich but quickly lost unless certain strategies are employed to transfer it into short-term or long-term memory. Sensory information is continuously bombarding the human brain, yet only a small fraction is absorbed, as most of it does not significantly impact daily life. For instance,...
01:22
Chunking and Rehearsal in Sensory Memory
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2025
Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of information more...
01:31
What is a Sensory System?
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2019
Sensory systems detect stimuli—such as light and sound waves—and transduce them into neural signals that can be interpreted by the nervous system. In addition to external stimuli detected by the senses, some sensory systems detect internal stimuli—such as the proprioceptors in muscles and tendons that send feedback about limb position. Sensory systems include the visual, auditory, gustatory (taste), olfactory (smell), somatosensory (touch, pain, temperature, and proprioception), and vestibular...
13:11
Sensory Exam
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2023
Source:Tracey A. Milligan, MD; Tamara B. Kaplan, MD; Neurology, Brigham and Women's/Massachusetts General Hospital, Boston, Massachusetts, USA A complete sensory examination consists of testing primary sensory modalities as well as cortical sensory function. Primary sensory modalities include pain, temperature, light touch, vibration, and joint position sense. Sensation of the face is discussed in the videos Cranial Nerves Exam I and II, as are the special senses of smell, vision, taste, and...
09:13
A Real-world What-Where-When Memory Test
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Cited by 3 •
2017
The Real-World What-Where-When memory test is a novel episodic memory test, in which participants need to recall which objects have been hidden in which locations on which of two distinct occasions. It is easy to run and is sensitive to normal cognitive aging.
FAQs
Modality-specific storage means that visual and auditory traces do not follow exactly the same perceptual route. Iconic memory preserves a visual trace, whereas echoic memory preserves an auditory trace. This distinction allows psychologists to examine sensory memory according to the kind of input presented, rather than treating all immediate perceptual retention as one undifferentiated process.
Attention acts as a selection point between a rapidly fading trace and continued processing. Information that receives attention can enter working memory, where it becomes available for further processing; unattended information is less likely to continue along that route. This mechanism explains why registering many sensory signals does not mean that all of them receive equal cognitive treatment.
Because sensory traces persist briefly after stimulation ends, sensory memory helps the mind integrate changing signals across moments. In visual experience, this supports the impression of continuous scenes; in hearing, it contributes to following speech even as the incoming sound changes. The topic therefore connects immediate retention with broader questions about perception and how experience is organized over time.
Iconic and echoic memory provide a useful comparison because they represent different sensory modalities within the same early storage stage. Studying them side by side can show how visual and auditory information are retained before attention selects material for working memory. Their comparison is especially relevant to explaining why perception can remain coherent across both changing images and unfolding speech.
Psychological studies of sensory memory can investigate how attention selects information from the initial perceptual trace and how selected material proceeds to working memory. These questions link the topic to research on attention, perception, and learning. They also help explain why the mind can process a stream of incoming information without preserving every sensory detail for continued analysis.
Research on sensory memory provides a way to examine differences in how people select or integrate sensory information. Aging and conditions that affect selection or integration are relevant areas for investigation. Studying these differences connects brief perceptual retention with later processing and may clarify how changes in sensory information handling influence perception.