Voluntary action is an anticipated goal-oriented movement. The concept of voluntary action arises in many areas of study, including cognitive psychology, operant conditioning, philosophy, neurology, criminology, and others. Additionally, voluntary action has various meanings depending on the context in which it is used. For example, operant psychology uses the term to refer to the actions that are modifiable by their consequences. A more cognitive account may refer to voluntary action as involving the identification of a desired outcome together with the action necessary to achieve that outcome. Voluntary action is often associated with consciousness and will. For example, Psychologist Charles Nuckolls holds that we control our voluntary behavior, and that it is not known how we come to plan what actions will be executed. Many psychologists, notably Tolman, apply the concept of voluntary action to both animal and human behavior, raising the issue of animal consciousness and its role in voluntary action.
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đ Voluntary action in the context of Behavior
Behavior (American English) or behaviour (British English) is the range of actions of individuals, organisms, systems or artificial entities in some environment. These systems can include other systems or organisms as well as the inanimate physical environment. It is the computed response of the system or organism to various stimuli or inputs, whether internal or external, conscious or subconscious, overt or covert, and voluntary or involuntary. While some behavior is produced in response to an organism's environment (extrinsic motivation), behavior can also be the product of intrinsic motivation, also referred to as "agency" or "free will".
Taking a behavior informatics perspective, a behavior consists of actor, operation, interactions, and their properties. This can be represented as a behavior vector.
Voluntary action in the context of Motor cortex
The motor cortex comprises interconnected fields on the posterior frontal lobeâchiefly Brodmann area 4 (primary motor cortex, M1) and area 6 (premotor cortex and supplementary motor areas)âthat plan, select and execute voluntary movements. These regions transform goals into patterned activity in descending pathways to brainstem and spinal motor circuits, enabling dexterous eye, face and limb actions. Modern work shows overlapping, actionâtype representations rather than a strictly pointâtoâpoint "homunculus," and highlights direct corticoâmotoneuronal projections that underwrite fine finger control. Clinically, motorâcortical organization shapes deficits after stroke and neurodegenerative disease and guides mapping for neurosurgery and neurotechnology.
Voluntary action in the context of Coma
A coma is a deep state of prolonged unconsciousness in which a person cannot be awakened, fails to respond normally to painful stimuli, light, or sound, lacks a normal sleep-wake cycle and does not initiate voluntary actions. The person may experience respiratory and circulatory problems due to the body's inability to maintain normal bodily functions. People in a coma often require extensive medical care to maintain their health and prevent complications such as pneumonia or blood clots. Coma patients exhibit a complete absence of wakefulness and are unable to consciously feel, speak or move. Comas can be the result of natural causes, or can be medically induced, for example, during general anesthesia.
Clinically, a coma can be defined as the consistent inability to follow a one-step command. For a patient to maintain consciousness, the components of wakefulness and awareness must be maintained. Wakefulness is a quantitative assessment of the degree of consciousness, whereas awareness is a qualitative assessment of the functions mediated by the cerebral cortex, including cognitive abilities such as attention, sensory perception, explicit memory, language, the execution of tasks, temporal and spatial orientation and reality judgment. Neurologically, consciousness is maintained by the activation of the cerebral cortexâthe gray matter that forms the brain's outermost layerâand by the reticular activating system (RAS), a structure in the brainstem.
Voluntary action in the context of Eye movement (sensory)
Eye movement includes the voluntary or involuntary movement of the eyes. Eye movements are used by a number of animals (e.g. primates, rodents, flies, birds, fish, cats, crabs, octopus) to fixate, inspect and track visual objects of interests. A special type of eye movement, rapid eye movement, occurs during REM sleep.
The eyes are the visual organs of the human body, and move using a system of six muscles. The retina, a specialised type of tissue containing photoreceptors, senses light. These specialised cells convert light into electrochemical signals. These signals travel along the optic nerve fibers to the brain, where they are interpreted as vision in the visual cortex.