Also, studies comparing the behavior of twin raised apart have been criticized as the twins often share similar environments and are sometimes raised by non-parental family member.
It is the only approach in psychology that examines thoughts, feelings, and behaviors from a biological and thus physical point of view. Saul McLeodupdated The biological approach believes us to be as a consequence of our genetics and physiology. Even more sophisticated is the PET scan Positron Emission Tomography which uses a radioactive marker as a way of studying the brain at work.
Neuro Surgery We know so little about the brain and its functions are so closely integrated that brain surgery is usually only attempted as a last resort.
What the scan, therefore, enables researchers to do is to provide ongoing pictures of the brain as it engages in mental activity. Each of these biological aspects, the comparative, the physiological i. The correlation figures below represent the average degree of similarity between the two people the higher the similarity, the more similar the IQ scores.
Research using twin studies looks for the degree of concordance or similarity between identical and fraternal i. Thus, if concordance rates which can range from 0 to are significantly higher for identical twins than for fraternal twins, then this is evidence that genetics play an important role in the expression of that particular behavior.
The brain can influence many types of behavior. Therefore, all that is psychological is first physiological. For example, we could ask how prescribed drugs to treat depression affect behavior through their interaction with the nervous system.
This technique cured his epilepsy, but in the process the hippocampus had to be removed this is part of the limbic system in the middle of the brain. The procedure is based on the principle that the brain requires energy to function and that the regions more involved in the performance of a task will use up more energy.
Identical twins have the same genetic make-up, and fraternal twins have just 50 per cent of genes in common. Phineas Gage brain injury case study provides neuroscience with significant information regarding the working of the brain. Investigation of Inheritance Twin studies provide geneticists with a kind of natural experiment in which the behavioral likeness of identical twins whose genetic relatedness is 1.
Brain Scans More recently methods of studying the brain have been developed using various types of scanning equipment hooked up to powerful computers.
There are two types of twins: Bouchard and McGue conducted a review of worldwide studies which compared the IQ of family members.
For example, we might want to know whether high intelligence is inherited from one generation to the next. Methods of Studying the Brain It is important to appreciate that the human brain is an extremely complicated piece of biological machinery.
During this, our brain waves begin to resemble those of our waking state though we are still fast asleep and it seems that this is when we dream whether we remember it or not.
So now we know the hippocampus is involved in memory. Electrodes are attached to the scalp and brain waves can be traced.
This can help in the search to understand human behavior. If given this opportunity, children develop a sense of initiative and feel secure in their ability to lead others and make decisions. Twins are concordant for a trait if both or neither of the twins exhibits the trait.
These and other methods for producing images of brain structure and functioning have been extensively used to study language and PET scans, in particular, are producing evidence that suggests that the Wernicke-Gerschwind model may not after all be the answer to the question of how language is possible.
Children begin to plan activities, make up games, and initiate activities with others. A biological perspective is relevant to the study of psychology in three ways: History of The Biological Approach The Voyage of the Beagle - - Darwin formulated his theory of natural selection through observing animals while traveling the world.
In addition to studying brain damaged patients, we can find out about the working of the brain in three other ways. In other words, if heredity i.Evaluation of the biological approach.
Strengths - Scanning research techniques are useful for investigating the functions of the brain: an organ with obvious involvement in our behaviour that would otherwise be unobservable.
- The approach presents the strong nature viewpoint of the nature-nurture debate. Video: Biological Approach in Psychology: Definition & Summary In this lesson, you'll learn what the biological approach to psychology is and how it is used to better understand the human experience.
Discuss the biological approach in psychology. Refer to at least one other approach in your answer. (12 marks) The biological approach focuses on both the physiological and evolutionary aspects which explain human behaviour.
Theories within the biological approach support nature over nurture. However, it is limiting to describe behavior solely in terms of either nature or nurture, and attempts to do this underestimate the complexity of human behavior.
It is more likely that behavior is due to an interaction between nature (biology) and nurture (environment). Biological psychology: Biological psychology, the study of the physiological bases of behaviour. Biological psychology is concerned primarily with the relationship between psychological processes and the underlying physiological events—or, in other words, the mind-body phenomenon.
Its focus is the function of the brain. Biological Psychology This section explores biological explanations in psychology, known as the biological approach. We'll look at the structure and functions of the brain, how biological approaches explain illnesses and more.Download