PSYC 1000 Chapter Notes - Chapter 11.1: Ventromedial Nucleus Of The Hypothalamus, Lateral Hypothalamus, Nucleus Accumbens
Document Summary
Motivation concerns the physiological and psychological processes underlying the initiation of behaviours that direct organisms toward specific goals. Receptors in the body respond to the increased concentrations of these compounds, as well as to the lower water volume, and send messages to the brain. The result is the sudden awareness that you are thirsty, which motivates you to drink water. Drive a biological trigger that tells us we may be deprived of something and causes us to seek out what is needed, such as food or water. When a drive is satisfied, reward centres in our brains become activated. This rein- forces our behaviour, making it more likely that we"ll respond to these drives. Homeostasis the body"s physiological processes that allow it to maintain consistent internal states in response to the outer environment. In contrast, stimulating the ventromedial region of the hypothalamus causes rats to stop eating.
