Flashcards
Biological Psychology: The Hormonal System and the Regulation of Hunger and the Hormonal System
Cards in this deck (10)
- 1The Hormonal System and the Regulation of Hunger and the Hormonal System: Objectives- Understand how the actions of hormones influence behaviour
- Compare the differences between the endocrine system and the nervous system
- Discuss the interaction of the endocrine system and the nervous system
- Discuss issues related to the regulation of hunger
- Have a working knowledge of the menstrual cycle and its effect on behaviour - 2Hormones and the Endocrine SystemHormones are released during particular situations or bodily cycles
They are not consciously released, but as part of bodily functions.
They effects are slower than the nervous system, but are generally longer lasting as they continue to circulate until they are broken down.
Growth, metabolism and reproduction are regulated by the endocrine system.
The hypothalamus plays a vital role is hormone secretion.
They are transferred around the body through blood. - 3The Endocrine System Vs the Nervous System- Endocrine and the CNS - linked to the hypothalamus, which controls the pituitary gland which in turn affects the secretion of the endocrine glands depending on the levels of hormones
Endocrine and the ANS - During stressful situations the ANS releases adrenaline from adrenal glands. The ANS also regulates a homeostatic metabolic rate by controlling the release of hormones from the thyroid gland.
Endocrine and the PNS - Hormones are released by thyroid, pancreas, adrena glands and influence the skeletal muscles - 4Three Systems that InteractMechanical System: The skeletal system and muscles acts as an effector for overt behaviour.
Chemical System: Hormones, which are essentially chemical messengers circulating in the bloodstream, are under neural and endocrine control.
Neural System: The nervous system is capable of processing incoming information and rapidly adapting to changes in the environment. - 5Interaction between Endocrine and Nervous SystemExternal stimuli are recognised by our senses and processed by our CNS.
This leads to activation of the ANS and endocrine systems to alter the internal environments - to maintain homeostasis.
The PNS acts as an effector to monitor hormonal behaviour to register whether adjustments need to be made to the increased or decreased activation in the CNS or ANS. - 6HomeostatusThe maintenance of the internal internal state through negative feedback systems to appropriately regulate the body.
Endotherms: temp regulated by internal metabolic systems
Ectotherms: temp determined by behavioural - 7Psychobiological Issues in hunger and eatingDo we eat for non-biological reasons?
Is obesity an actual issue?
Are eating disorders prevalent? - 8Regulation of Body WeightThe Role of Insulin (Rodin)
Role of hypothalamus:
- Lesions to the ventromedial hypothalamus (produces overeating)
- Lesions to the lateral hypothalamus (produces anorexia) - 9Metabolic DeterminantsAge
Gender
Exercise
Diet
Genetics
Body Size - 10The Menstrual Cycle and Its affect on behaviourLasts approximately 28 days in female.
Has a physical affect on female bodies in days leading up to menstruation.
Increase in sexual activity due to peaks in oestradiol, and LH levels.
Menopause and surgical removal of the ovaries affect levels of female hormones, but have little effect on sexual interest and activity
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- Introduction to the Human Hormonal and Endocrine system in biological psychology
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- Hannah Shakeshaft
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