Related Experiment Video
Updated: Jul 3, 2025
07:42
An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents
Published on: August 2, 2018
13.6K
Free will: An Example of the Dopaminergic System
1Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Butlerova Str., 5a, Moscow, 117485, Russia. nivlieva2@gmail.com.
Integrative Psychological & Behavioral Science
|February 14, 2024
Summary
Neuroscience explores the brain
Area of Science:
- Neuroscience
- Philosophy of Mind
- Neurobiology
Background:
- Neuroscience suggests behavior is predetermined, challenging free will.
- Robert Kane's libertarian theory of ultimate responsibility offers a framework for free will.
- Investigating the neurophysiological underpinnings of free will is crucial.
Purpose of the Study:
- To explore the neurophysiological basis of Robert Kane's theory of ultimate responsibility.
- To examine the role of the midbrain dopaminergic system in self-forming actions.
- To connect dopamine function to the concept of free will.
Main Methods:
- Review of neuroscientific literature on the dopaminergic system.
- Analysis of dopamine's role in action execution and synaptic plasticity.
- Examination of dopamine's influence on basal ganglia and prefrontal cortex networks.
Main Results:
- Dopamine is hypothesized to mediate self-forming actions, crucial for ultimate responsibility.
- Dopamine facilitates learning and individual will formation through synaptic plasticity.
- The dopaminergic system's modulation of basal ganglia and prefrontal cortex networks is linked to decision-making and free will.
Conclusions:
- The midbrain dopaminergic system provides a potential neurophysiological basis for free will.
- Dopamine's role in self-forming actions and will formation supports libertarian free will concepts.
- Further research into the dopaminergic system is essential for understanding the biological basis of free will.
Related Concept Videos
01:29Drugs Affecting Neurotransmitter Synthesis
1.4K
Drugs affecting neurotransmitter synthesis can impact the adrenergic neuron and the synthesis of neurotransmitters. For example, α-methyltyrosine and carbidopa target specific enzymes involved in catecholamine synthesis. α-methyltyrosine inhibits the enzyme tyrosine hydroxylase, which converts tyrosine into dopamine. By blocking this enzyme, α-methyltyrosine reduces dopamine production and other catecholamines. Carbidopa, on the other hand, inhibits the enzyme dopa decarboxylase,...
1.4K
01:15Drug Abuse and Addiction: Pharmacological Phenomena
476
Drug dependence, abuse, and addiction are complex phenomena that can precipitate various abnormal states. Physical dependence refers to a state of pharmacological adaptation to a drug. This adaptation often results in tolerance—a reduced response to the drug after repeated administrations. When the drug use is abruptly stopped, withdrawal symptoms occur due to the body's need to readjust from the pharmacologically induced imbalance. However, tolerance and withdrawal symptoms do not...
476
01:27Diencephalon: Thalamus and Information Relay
1.6K
The thalamus, often called “the gateway to the cerebral cortex,” is vital in processing and directing sensory and motor signals throughout the brain. Almost all inputs destined for the cerebral cortex, except for olfactory signals, are relayed through the thalamus. The thalamus is a sophisticated relay station, channeling information from various brain regions to the cerebral cortex, as well as a filter, prioritizing certain signals over others based on current physiological...
1.6K
01:19The Behavioral Perspective on Personality
330
Behaviorists view personality as primarily shaped by environmental reinforcements and consequences. According to this perspective, behavior is influenced by external stimuli, and individuals adjust their actions based on rewards and punishments. Over time, learning histories — accumulated patterns of reinforcement — play a significant role in shaping personality. Behaviors that lead to positive outcomes are reinforced, while those resulting in negative outcomes are diminished.
330
01:26Neurochemical Transmission: Sites of Drug Action
2.3K
Neurochemical transmission, the conduction of electrical impulses between neurons mediated by neurotransmitters, plays a vital role in various physiological processes. Autonomic drugs exert their effects by modulating neurotransmission within the autonomic nervous system. For instance, drugs such as hemicholinium block the precursor uptake necessary for synthesizing acetylcholine, an essential autonomic neurotransmitter. Following synthesis, neurotransmitters are stored in vesicles. Metyrosine...
2.3K
01:29Excitatory and Inhibitory Effects of Neurotransmitters
10.0K
When an action potential reaches the presynaptic axon terminal, it releases neurotransmitters from the neuron into the synaptic cleft at a chemical synapse. The released neurotransmitter can be excitatory or inhibitory. The critical criteria commonly used to determine whether a molecule is a neurotransmitter at a chemical synapse are the molecule's presence in the presynaptic neuron. Second, its release is in response to strong presynaptic depolarization. And lastly, the presence of...
10.0K