Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Sensory Memory01:14

Sensory Memory

939
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,...
939
Chunking and Rehearsal in Sensory Memory01:22

Chunking and Rehearsal in Sensory Memory

766
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...
766
System of Memory01:23

System of Memory

7.9K
Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...
7.9K
Eyewitness Memory01:22

Eyewitness Memory

627
Eyewitness memory refers to the recollection of events by someone who has directly witnessed them, often serving as critical evidence in legal settings. This type of memory is commonly used in criminal cases where a witness describes details like a suspect's appearance, clothing, or behavior during a crime. However, despite its perceived reliability, eyewitness memory is prone to significant errors.
One such error is memory distortion, which occurs because human memory does not function...
627
Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

9.3K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
9.3K
Sensory Perception: Organization of the Somatosensory System01:11

Sensory Perception: Organization of the Somatosensory System

12.7K
The somatosensory system is the central and peripheral nervous system component that senses and processes touch, pressure, pain, temperature, and body position or proprioception. The process of sensation takes place at three levels:
The receptor level:
The receptor level is the first stage of sensation. It involves the detection of a stimulus by specialized sensory receptors. The stimulus must arrive within the receptor's receptive field. Next, the receptor converts the energy of the...
12.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Reassessing hippocampal contributions to implicit memory: a call for conceptual clarity, methodological rigor, and increased measures of awareness.

Cognitive neuroscience·2026
Same author

Episodic and semantic memory contributions to imagination and creativity.

Memory (Hove, England)·2026
Same author

Reducing type II error in fMRI analysis: cluster-extent threshold simulation results and an evaluation of current methods to correct for multiple comparisons.

Cognitive neuroscience·2026
Same author

Predictive coding of cognitive processes in natural and artificial systems.

Cognitive neuroscience·2025
Same author

Resting-State Functional Connectivity With the Anterior and Posterior Hippocampus: An Analysis of fMRI Data From the Human Connectome Project.

Hippocampus·2025
Same author

False memories activate distinct brain regions in females and males.

Neuroimage. Reports·2025

Related Experiment Video

Updated: Apr 12, 2026

Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills
09:27

Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills

Published on: January 19, 2024

1.9K

The sensory timecourses associated with conscious visual item memory and source memory.

Preston P Thakral1, Scott D Slotnick2

  • 1Center for Vital Longevity and School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX 75235, United States.

Behavioural Brain Research
|May 9, 2015
PubMed
Summary

Conscious visual memory retrieval shows flexible timing. Sensory activity onset differs for item vs. source memory, challenging fixed temporal boundaries for conscious processing.

Keywords:
ERPsExplicit memoryImplicit memoryOccipitalTemporalfMRI

More Related Videos

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

7.5K
Eye Movement Monitoring of Memory
08:06

Eye Movement Monitoring of Memory

Published on: August 15, 2010

15.3K

Related Experiment Videos

Last Updated: Apr 12, 2026

Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills
09:27

Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills

Published on: January 19, 2024

1.9K
Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

7.5K
Eye Movement Monitoring of Memory
08:06

Eye Movement Monitoring of Memory

Published on: August 15, 2010

15.3K

Area of Science:

  • Cognitive Neuroscience
  • Neuroimaging
  • Human Memory

Background:

  • Previous event-related potential (ERP) studies suggested distinct temporal epochs for nonconscious and conscious sensory activity during visual memory.
  • It was hypothesized that conscious sensory activity onset is restricted to a late temporal epoch (800-1600 ms).

Purpose of the Study:

  • To test the hypothesis of a fixed temporal boundary for conscious sensory activity during visual item and source memory retrieval.
  • To investigate the temporal dynamics of conscious sensory processing in item (shape) and source (location) memory.

Main Methods:

  • Event-related potential (ERP) experiment to assess the onset of conscious sensory activity in item and source memory.
  • Functional magnetic resonance imaging (fMRI) to localize conscious sensory activity in the visual cortex.

Main Results:

  • Conscious sensory activity onset was late (>800 ms) during source memory retrieval.
  • Conscious sensory activity onset was early (<200 ms) during item memory retrieval.
  • fMRI localized conscious sensory activity to visual areas BA17, BA18, and BA19.

Conclusions:

  • The distinct onsets of conscious sensory activity in item and source memory contradict the hypothesis of a fixed temporal boundary.
  • Conscious visual retrieval processing is not bound by a single, late temporal epoch.
  • The timing of conscious sensory processing varies depending on memory task demands.