Related Experiment Video
Updated: Sep 24, 2025
07:17
Aversive Associative Learning and Memory Formation by Pairing Two Chemicals in Caenorhabditis elegans
Published on: June 23, 2022
2.6K
Aversive conditioning: Principles of memory storage in sensory cortex
1Hertz Chair for Artificial Intelligence and Neuroscience, University of Bonn, Bonn, Germany; Wellcome Centre for Human Neuroimaging and Max Planck UCL Centre for Computational Psychiatry and Ageing Research, University College London, London, UK; Clinical Research Priority Program Synapse and Trauma, University of Zurich, Zurich, Switzerland.
Current Biology : CB
|May 10, 2022
Summary
Sensory brain regions change after learning unpleasant things and may store memories. A new study used brain scans to explore how the sense of smell learns disgust in humans.
Area of Science:
- Neuroscience
- Cognitive Science
- Psychology
Background:
- Sensory cortices demonstrate plasticity following aversive experiences.
- These brain regions are implicated in the storage of memory.
- Olfactory learning and memory are critical for survival and social interaction.
Purpose of the Study:
- To investigate the neural mechanisms of olfactory disgust conditioning in humans.
- To understand how the brain learns to associate neutral smells with aversive outcomes.
- To explore the role of sensory cortices in forming and retrieving disgust-related memories.
Main Methods:
- A human neuroimaging study employing functional magnetic resonance imaging (fMRI).
- Utilized olfactory disgust conditioning paradigms to elicit and measure neural responses.
- Analyzed brain activity in sensory and associative areas during conditioning and recall.
Main Results:
- Significant alterations in sensory cortex activity were observed following olfactory disgust conditioning.
- Specific neural pathways were identified that mediate the acquisition and expression of disgust memories.
- The findings highlight the dynamic nature of sensory processing in response to aversive learning.
Conclusions:
- Sensory cortices play a vital role in olfactory memory formation and storage.
- Neuroimaging provides insights into the neural basis of learned disgust responses.
- This research contributes to understanding the neural principles of aversive learning and memory consolidation.
More Related Videos
Related Concept Videos
01:23Storage
141
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
141
01:24Somatosensory, Motor, and Association Cortex
1.1K
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
1.1K
01:26Higher Mental Functions of Brain: Learning and Memory
981
Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or...
981
01:14Motor and Sensory Areas of the Cortex
4.8K
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....
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....
4.8K
01:11Sensory Perception: Organization of the Somatosensory System
7.6K
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...
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...
7.6K
01:14Sensory Memory
318
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,...
318