I think is reaction.
The term you are looking for is "reaction" or "response." It describes the action taken as a result of a stimulus or influence.
A response.
The term for responding to a stimulus is called a reaction or a response.
A stimulus response is a direct reaction to a specific stimulus, while behavior refers to a more complex pattern of actions and reactions exhibited by an organism. Stimulus response is more immediate and reflexive, while behavior is influenced by multiple factors including past experiences, learning, and environment. Behavior is a broader term that encompasses various actions and responses over time, whereas stimulus response typically refers to a direct cause and effect relationship.
The term that describes the loss of a conditioned response if the natural stimulus is removed is extinction. Extinction occurs when the conditioned response diminishes or disappears because the conditioned stimulus is no longer paired with the unconditioned stimulus.
A conditioned stimulus is an initially neutral stimulus that becomes associated with an unconditioned stimulus to elicit a conditioned response.
Inotroph refers to the hearts force of contraction. Positive inotroph therefore refers to the hearts ability to increase its force of contraction in response to a stimulus.
The term that does not belong is "action potential." While excitability, response to a stimulus, and contractility are all related to muscle function and the ability of muscle fibers to react to stimuli, an action potential refers specifically to the electrical impulse that triggers these processes.
Neutral stimulus
The general term for this behavior is tropism. It can take a variety of forms, including phototropism (when the stimulus is light) and chemotropism (when the stimulus is a particular chemical).
Contralateral response refers to a reaction or phenomenon that occurs on the opposite side of the body to where the stimulus is applied. This term is commonly used in neuroscience and medicine to describe how the brain processes and responds to stimuli.
The term that describes the yellow feather stimulus in this example is "unconditioned stimulus" if it naturally elicits a response without prior learning. If the yellow feather has been associated with a specific response through conditioning, it could also be referred to as a "conditioned stimulus." The context of the example would clarify which term is most appropriate.