Anatomy of Emotions
Anatomy of Emotions
Hypothalamic CircuitHormones regulate various
motivated behaviorHypothalamus controls the
pituitaryProduces posterior pituitary
hormonesSecretes releasing
hormones which stimulate the anterior pituitary
Regulated by feedback and response to other stimuli
Pituitary Hormones
Feedback Regulation
Milk Letdown Response
Limbic System
Cingulate Gyrus
Olfactory Bulb
Thalamus
Hypothalamus
Fornix
Mammilary BodyHippocampus
Amygdala
Limbic CircuitJames Papez – rabies
damaged the hippocampus emotional disturbances
Input from the prefrontal cortex, sensory cortex, and hypothalamus passes through the limbic circuit
Amygdala & HippocampusAmygdala receives input from sensory systemsSends info to the hypothalamus
Influences emotional response and behaviorStimulates eating
Hippocampus plays a role in spatial awareness, emotion, and memory
Frontal LobePrefrontal cortex and
amygdala receive input from each other
Prefrontal cortex sends signals to the hypothalamus activates autonomic NS
Agenesis – absence or severe reduction of the frontal lobe