Melatonin, SAD and the Circadian Rhythm

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Melatonin and SAD Here’s a video that defines SAD and gives some symptoms of this disorder. If you are to explain how melatonin can cause SAD, you need to know the symptoms. This is also applicable to the GLT that focuses on how our environment can affect our physiology and how that can in turn affect our behaviour.  [youtube https://www.youtube.com/watch?v=QVJYojGonxA] …

Oxytocin and Bonding

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Here’s an article with some interesting research regarding the role of oxytocin in bonding between fathers and their children. You’ll be able to find even more information about the functions of oxytocin in human behaviour by reading this article. Don’t forget that you need to know supporting research. If you are interested in how this hormone can influence bonding and …

Introduction to Localization of Brain Function

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Localization of brain function simply means that different areas of the brain (i.e. locations) are associated with different behaviours and mental processes (functions). For example, Our hippocampus plays a role in memory. The prefrontal cortex is associated with decision making, planning and controlling our impulsive behaviours. The amygdala plays a role in emotion and emotional response. These are just some …

Introduction to Neurotransmission

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Neurotransmission is the process by which neurotransmitters are fired from one neuron to another. It’s important that you can explain how varying levels of neurotransmitters in the nervous system (e.g. in the brain) can have an impact on our behaviour. Here’s a quick preview of neurotransmission: [youtube https://www.youtube.com/watch?v=cNaFnRKwpFk] You should be able to outline the causes of neurotransmission and the changes …

Hormones: An Introduction

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Hormones and the Endocrine system Another key biological factor in understanding behaviour is the endocrine system.  Neurons are what make up our nervous systems; glands are what make up our endocrine system. The endocrine system, therefore, is the name given to the various glands throughout the body that regulate and release hormones. You may already be familiar with hormones from …

Serotonin and Violence

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Serotonin and Violence Levels of neurotransmitters in the brain can influence behaviour, so it’s plausible to think that in the criminal brain there may be some abnormalities in neurotransmitter levels. Numerous research studies have shown that violent criminals do in fact tend to have low levels of serotonin (e.g. Moi and Jessel, 1995; Scerbo and Raine, 1993). Studies have also …

Neurotransmission and Behaviour

tdixon Biological Psychology, Criminology, Uncategorized Leave a Comment

Neurotransmission and Behaviour There are a number of different neurotransmitters. Research has shown that these different neurotransmitters are associated with particular behaviours. For instance: Dopamine: love, addiction, pleasure, motivation, Serotonin: mood, sleep, arousal, impulsive and aggressive behaviour Acetylcholine: learning, memory, sleep, movement Noradrenaline: stress, alertness arousal There’s always a desire in students first learning about biological psychology to jump to …