Animal Behaviour Flashcards
Reflexes
Automatic responses to simple stimuli and are recognized as reliable behavioural responses following a given environmental stimulus
Simple reflex
Controlled at the spinal cord, connecting a 2-neuron pathway from the receptor (afferent neuron) to the motor (efferent neuron)
The efferent nerve innervates the effector
Complex reflex
Involve neural integration at a higher level of the brainstem or cerebrum
Fixed-action patterns
Complex, coordinated, innate behavioural responses to specific patterns of stimulation in the environment
Relatively unlikely to be modified by learning.
The particular stimuli are more readily modified, provided certain cues or elements of the stimuli are maintained
Releaser
The stimulus that elicits fixed-action patterns
Circadian rhythms
Daily cycles of behaviour
Initiated intrinsically but modified by external factors
Environmental stimuli
Periodic stimuli that stimulate established and maintained patterns of behaviour
Learning
Complex phenomenon that involves adaptive responses to the environment
Capacity for learning adaptive responses is closely correlated with the degree of neurologic development
Habituation
One of the simplest learning patterns involving the suppression of the normal start response to stimuli
Repeated stimulation results in decreased responsiveness to that stimulus
Spontaneous recovery
If a stimulus is no longer regularly applied, the response tends to recover over time
Classical conditioning
Pavolvian
The association of a normally autonomic or visceral response with an environmental stimulus
Conditioned reflex
The normal, innate stimulus for a reflex is replaced by one chosen by the experimenter
Pavlov’s experiments
Salivation reflex in dogs to a bell
If a dog was presented with an arbitrary stimulus (bell) and then presented with food, it would eventually salivate on hearing the bell alone
Unconditioned stimulus
An established (innate) reflex
Unconditioned response
The response that is naturally elicited
Neutral stimulus
A stimulus that will not by itself elicits the response prior to conditioning
Conditioned stimulus
The neutral stimulus is able to elicit the response in the absence of the unconditioned stimulus
Conditioned reflex
The product of the conditioning experience
Conditioning
The establishment of a new reflex by the addition of a new, previously neutral stimulus to the set of stimuli that are already capable of triggering the response
Pseudoconditioning
The ‘neutral’ stimulus is able to elicit the response even before conditioning and is not really a neutral stimulus
Operant/instrumental conditioning
Involves conditioning responses to stimuli with the use of reward or reinforcement that increases the likelihood that the behaviour will appear
Positive reinforcement
Includes providing food, light, or electrical stimulation of the animal’s brain “pleasure centers”
The animal becomes more likely to repeat the desired behavioural response
Poistive connection between the action and reward
Negative reinforcement
Involves stimulating the brain’s pleasure centers but links the lack of certain behaviour with a reward
Negative connection between action and reward
Punishment
Stop exhibiting a given behaviour pattern
The organism is less likely to repeat the behavioural response
Negative connection between the stimulus and response
Habit family hierarchy
A stimulus is usually associated with several possible responses, each response having a different probability of occurrence.
Reward strengthens a specific behavioural response and raises its order in the hierarchy