Describe the general neural framework for the control of eating in terms of feeding-facilitation and feeding-inhibition circuits.

What will be an ideal response?


No one area is the final controller of eating. Sensory and motor information from the gut is sent to the brain stem, where basic feeding reflexes are controlled. Forebrain circuits arising from the lateral hypothalamus can act via MCH and orexins to facilitate eating, and this region appears to be sensitive to the orexigenic effects of NPY. Cells in the arcuate nucleus secrete both NPY and agouti-related peptide (AgRP), which acts as an antagonist at MC4 receptors that normally function to inhibit eating. Thus, NPY and AgRP stimulate eating. A common finding is that a specific neuropeptide may exert dual actions: namely, facilitating actions in one pathway (e.g., MCH/orexin) and inhibiting activity in the other pathway (e.g., NPY/AgRP). Leptin can inhibit NPY activity and can activate cells that express CART.

Psychology

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James Mill's model says that all knowledge ____.?

a. ?begins with sensations, and associations create complex ideas b. ?is innate, and combined to form complex ideas c. ?comes from ideas d. ?requires an actively engaged mind e. ?More than one of the choices are correct.

Psychology

Utilitarian theory would favor ____________ over punishment if both were to have equal amounts of utility for society.

Fill in the blank(s) with the appropriate word(s).

Psychology

Xiao is gathering research on the number of meals people eat

He gathers data about the number of daily meals eaten by 25 people at each of the following ages—10, 20, 30, 40, 50, 60, and 70 years—over the course of one week, and looks for developmental differences. What type of research design is Xiao using? A) Continuous B) Cross-sectional C) Sequential D) Longitudinal

Psychology

Research suggests that the most significant effects of divorce on children occur within the first two years.

Answer the following statement true (T) or false (F)

Psychology