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• Negative emotions are better understood than are positive ones. Positive psychology is a new field, and eventually we may understand positive emotions.
• Medial nucleus• A group of subnuclei of the __________that receives
sensory input, including information about the ________________________________pheromones, and relays it to the medial basal forebrain and hypothalamus.
• The region of the amygdala that receives information from the basolateral division and sends projections to a wide variety of regions in the brain; involved in emotional responses. The ___________________for expressing emotions induced by ________stimuli.
• ________________ (LA)• A nucleus of the amygdala that receives sensory
information from the neocortex, thalamus, and hippocampus and sends projections to the ventral striatum, the dorsomedial nucleus of the thalamus, and the central nucleus.
• If the ______________ is damaged subjects show little fear, they act tame, they show low levels of stress hormones, do not develop ulcers, or stress induced diseases.
• Conditioned emotional response• A classically conditioned response that occurs when a
neutral stimulus is followed by an aversive stimulus.
• Patients who experienced surgical stimulation of the amygdala reported ___________________.
• Lesions of the amygdala have been reported to decrease human emotional responses, and interfere with the relationship between _______________________.
• Subjects are able to recognize happy or sad music, but not ____________ music.
• Anger, aggression, and impulse control• Aggressive behaviors are species-typical, and serve useful
functions much of the time.
• Almost all species of animals engage in aggressive behaviors, which involve threatening gestures or actual attack directed toward another animal. Aggression is ___________________________________________.
• Aggressive behaviors are species-typical and involve patterns of movements organized by neural circuits programmed by an animal’s ______.
• Research suggest that serotonergic neurons play an ____________________ human aggression.
• Depressed rates of serotonin release are associated with aggression and other forms of antisocial behavior including assault, arson, murder, and child beatings.
• Studies have found that fluoxetine (Prozac), a serotonin ___________, decreased irritability and aggressiveness.
• Phineas Gage was unable to carry out plans, and his actions were irresponsible and thoughtless. Before injury he was serious, industrious and energetic.
• Subjects with a history of impulsive violence exhibit a deficit in serotonergic innervation in the prefrontal cortex.
• Subjects with a history of antisocial behavior have decreased volume of the prefrontal cortex.
Comprehension of semantic meaning of words is bilateral (more on the left), but the comprehension of emotion by tone of voice activates just the right prefrontal context.
• Communication of Emotions• Role of imitation in recognition of emotional expressions
• There appears to be a possible link between somatosensation and emotional recognition.
• Damage to the somatosensory cortex (especially on the right side) appears to impair the ability to recognize and identify facial expressions of emotion.
• When we see a facial expression we______________ ___________________________________________ and this provides cues for its recognition. Right side lesions to the somatosensory cortex impair recognition of emotional expression.
• Subjects with facial paralysis (Moebius syndrome) _________________________________________.
• Disgust – an emotion provoked by something that smells bad or tastes bad.
• Damage to the insular cortex and basal ganglia impair the ability of subjects to recognize facial expressions of _______.
• The right hemisphere is more _________________________________________.
• Right hemisphere lesions impair expression of ____________________________________. Left hemisphere lesions only impair __________________________________________.
1 neutral, 2 fear, 3 anger, 4 happiness, 5 sadness, 6 disgust, 7 surprise. This subject with amygdala lesions can produce these posed emotions, but cannot recognize the ______________.