PS261 Lecture Notes - Lecture 2: Drug Tolerance, Afferent Nerve Fiber, Sensory Neuron
Document Summary
Reflexes are controlled by 3 neurons: sensory (afferent) neurons, which are neurons that intake information through the environment through the 5 senses: engaged by environmental stimuli, sends information towards the spinal cord motor (efferent) neurons, neurons that receives information from the spinal cord and transmits to the muscles to perform the reflexive response the sensory and motor neurons don"t directly interact, they do this through the interneuron; relays the information from the afferent (sensory) neurons to the efferent (motor) neurons o interaction between these 3 neurons is referred to the reflex arc, note: reflex arc signal interaction is carried out by the spinal cord. Key terms: a process afferent neuron appetitive behavior b process consummatory behavior drug tolerance efferent neuron fatigue focal search method food handlng mode general search mode habituation effect habituation process interneuron modal action patter (map) In releasing stimulus sensitization effect sensitization process sensory adaptation sensory neuron sign stimulus spontaneous recovery.
