Final answer:
Trauma-induced paralysis, or tonic immobility, is characterized by reduced movement and is related to the body's freeze response during extreme stress or fear, not hyperactivity, accelerated heartbeat, or euphoria.
Step-by-step explanation:
Trauma-induced paralysis, also known as tonic immobility, involves reduced movement. It is a state where a person experiences a temporary inability to move, often as a result of extreme stress or fear. This condition is not associated with hyperactivity, accelerated heartbeat, or euphoria; instead, it is connected to an activation of the body’s freeze response.
The mechanism behind tonic immobility may involve parts of the central nervous system (CNS) like the basal nuclei, which are influenced by dopamine. Certain substances, such as the drug haloperidol, affect dopamine activity in basal nuclei and can result in movement disorders. Tonic immobility is often linked with the sympathetic nervous system's response to stress, which can include pupil dilation, increased heart rate, and rapid breathing, as seen in situations of acute stress, but the paralysis itself is characterized by a marked reduction in voluntary movement.