Biological Approach To Psychology Essay

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A lot has been said about behavioural and biological approaches in psychology i.e. the assumptions of both approaches and how they influence disorders such as depression.
The behavioural theory states that personality is as a result of the interaction between an individual and the environment (i.e. the society and the individual). It is focus on observable and measurable behaviour rather than mental or emotional behaviours and different theories focus on one type of behaviour over the other. On the contrary, the biological approach seeks to explain behaviour as a result of interactions within the body. It is based on assumptions such as how the brain psychology can influence behaviour and also how behaviour can be inherited
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These are neurotransmitter dysfunction and inherited genes.
In neurotransmitter dysfunction, the biological approach to depression explains low levels of the neurotransmitter serotonin. This has been linked with many forms of dysfunctional behaviour such as anxiety, excessive anger, poor social functioning and other mood disorders.
Serotonin is understood to have a variety of roles and affects brain functioning; even though it is not known if depression is caused by serotonin levels, or whether depression causes low serotonin, or if there is another factor causing them both.
In regards to genes, depression could be explained in terms of genetic predispositions. Research in the area of twin and adoption studies has shown that there is a genetic link to depression. As a result it is being advocated some individuals may have genes that predispose them to depression and other mood disorders.

Behaviorism assumes that we are born as a blank slate and so equal at birth. The theorists believe that it is the environmental factors that shape our behaviour rather than genetic or biological differences. Behaviorism very much represents the nurture aspect of the nature-nurture
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