Related Experiment Video
Updated: Jun 8, 2026
07:02
Trace Fear Conditioning in Mice
Published on: March 20, 2014
The role of prefrontal cortex in predictive fear learning
Teri M Furlong1, Sindy Cole, Adam S Hamlin
1School of Psychology, The University of New South Wales, Sydney, NSW 2052, Australia.
Behavioral Neuroscience
|October 14, 2010
Summary
This study reveals that the dorsomedial prefrontal cortex (dmPFC) and its thalamic connections are crucial for learning about unexpected aversive events. This pathway signals prediction errors in fear conditioning.
Area of Science:
- Neuroscience
- Behavioral Neuroscience
- Learning and Memory
Background:
- Pavlovian fear conditioning relies on prediction error, the difference between expected and actual outcomes.
- The prefrontal cortex (PFC) and thalamocortical pathways are implicated in predictive fear learning.
Purpose of the Study:
- To investigate the role of the PFC and thalamocortical pathways in signaling prediction errors during fear learning.
- To determine the specific involvement of dorsomedial PFC (dmPFC) in associative blocking.
Main Methods:
- Immunohistochemistry to assess neuronal activity (c-Fos expression).
- Neuronal tract tracing to map pathways.
- Reversible inactivation of specific PFC regions (dmPFC, infralimbic PFC).
Main Results:
- Unexpected conditioned stimulus (CS)-unconditioned stimulus (US) pairings increased c-Fos expression in the PFC, midline thalamus, and lateral amygdala.
- A thalamic pathway projecting to the dmPFC was identified.
- Inactivation of dmPFC, but not infralimbic PFC, blocked associative blocking of fear learning.
Conclusions:
- The thalamic → dmPFC pathway plays a key role in processing prediction errors.
- The dmPFC is essential for learning about unexpected aversive events, contributing to fear conditioning plasticity.
Related Concept Videos
01:14Role of Cerebellum and Prefrontal Cortex in Memory
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the cerebellum's...
01:16Role of Amygdala in Memory
The amygdala is a small, almond-shaped structure responsible for processing and storing memories, particularly those linked to emotions like fear and stress. It plays an essential role in the brain's response to emotionally significant events and often enhances memory formation by triggering stress hormone release. The amygdala is vital for encoding and retrieving memories associated with fear or stress, a process that is adaptive by helping organisms avoid dangerous situations.
One of the...
One of the...
01:09Preparedness and Phobias
Human fear responses to certain stimuli, such as darkness, heights, deep water, and blood, can often arise despite the absence of direct negative experiences. This phenomenon is rooted in evolutionary psychology, which posits that humans have developed a predisposition to fear stimuli that historically posed significant survival threats. This predisposition, known as preparedness, suggests that early humans who developed a fear of potentially dangerous entities, such as venomous snakes and...
01:14Avoidance Learning and Learned Helplessness
Avoidance learning and learned helplessness are critical concepts in understanding behavioral responses to negative stimuli.
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
01:15Functional Brain Systems: Limbic System
The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
01:21Association Areas of the Cortex
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...