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In this lecture ´´Behavioral and Motivational Mechanisms´´ are explained. Section one is about ´´Activating-Driving Systems´´. In the very slide driving systems of the brain are highlighted. Next, reticular excitatory area of the brain stem comes under consideration. Then, excitation of area by peripheral sensory signals is carried out. Educator tells about increased activity of the excitatory area. Lastly, the thalamus: distribution center is reported.
Reticular Inhibitory Area
Section two is about ‘’Reticular Inhibitory Area’’. Initially, neurohormonal control of brain activity is explained. This is followed by elucidation of neurohormonal systems in the human brain. After that the locus ceruleus and the norepinephrine system comes under consideration. The next subject of discussion is the substantia nigra and the dopamine system. Moving onward, information is revealed about the raphe nuclei and the serotonin system. Concluding this section Gigantocellular neurons of reticular area and ach system is pursued. Finally, other neurotransmitters and neurohormone are explained.
Section three is about ‘’Limbic System’’. At first, educator gives an introduction of limbic system. After that functional anatomy of the limbic system is illustrated. Then information about key position of hypothalamus in limbic system is delivered. Following this limbic cortex is elucidated. Moreover, route of communications is pursued. Lastly, medial forebrain bundle is exhibited.
Section four is about ‘’Hypothalamus’’. Educator’s first theme of discussion is signal transmission of hypothalamus. Next is the vegetative and endocrine control functions of hypothalamus. Then behavioral functions of the hypothalamus are reported. This is followed by reward and punishment function of limbic system. Afterwards, reward and punishment centers are briefly explained. Educator also tells about the association of rage with punishment centers. In the end, importance of reward/punishment in learning and memory is discussed.
Other Parts of Limbic System
Section five is about ‘’Other Parts of Limbic System’’. Educator tells the functions of the hippocampus. After that role of the hippocampus in learning is discussed. Then functions of the amygdala are reported. Moving onward, effects of stimulating the amygdala are highlighted. Then discussion continues on the klüver-bucy syndrome. Finally, function of the limbic cortex is elaborated to conclude this section.