• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Physiological Approach Research Method - Biological Methods.

Extracts from this document...


Physiological Approach Research Method #1: Biological Methods This research method can also be divided into two smaller groups: Invasive and Non-Invasive Method. Invasive method basically involves the actual cutting and damaging of a brain, while non-invasive method revolves around scanning a fully functional brain with different devices. Invasive Method The invasive method can also be broken down into two smaller groups: lesions and ablations surgery. Ablation surgery is the process of actually removing a part of a brain, whilst lesions surgery involves damaging a part of the brain with electrodes. Most of these methods however, are done on animals, usually because of ethical issues. Surgery is still done on human brains, although they are only used to help the patients more than to experiment on them. Evaluation Advantages: There were quite a few tests that were done on humans, where it's quite safe for us to make a few reasonable conclusions with. Also, when using animals, the researchers can damage a specific part of a brain to see what happens. ...read more.


MRI scan is used as well, for similar purposes. This one involves magnetic fields being measured. All these scans use the aid of computers to plot the images. Evaluation Advantages: The scans are usually very accurate, and show lots of different details. The scans are also useful when the person is in a state of emergency, as they produce the images almost immediately. Also, the results are usually replicable, which makes it hard to depict. Disadvantages: The biggest problem with these scanners is that they are too expensive currently. The scanners are usually used for people who need help, more than research purposes because of this. Research Method #2: Genetic Influences on individual differences This method can also be divided into two smaller sections, but they are both based around the study of twins. Correlational techniques and twin studies Correlational technique is the observation of how different variables have affects on people. ...read more.


There may also be some subjectivity from the researcher. Research Method #2: Experimentations Basically put, this method is when people take an idea, test it, and see if their idea was right. The experiments vary vastly, and the subjects of the experiments vary too. The experimentations can be reproduced by anyone, as they are very structured and well controlled. Evaluation Advantages: Because these experiments and results can be reproduced by anyone, the results are reliable. The strict controls allow the psychologists to see what affects people in different ways. Also, animal testing allows the researcher to do certain tests on animals that maybe deemed as unethical to be done to people. These experiments told us a lot about people too, as we are animals biologically. Disadvantages: However, some people view experiments on animals as unethical as experiments done on people. There are also lots of differences between us and animals, which disallows direct comparison. Also, although controlled may give us reliable results, it may not necessarily be accurate. They are usually things which people won't do in real life, and thus, the experiments lack ecological validity. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our University Degree Zoology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related University Degree Zoology essays

  1. Animal Testing

    (Why Conduct Literature Searches for Alternatives?) Most of the large manufacturers of personal care and household products could implement strategies that are considered cost effective, better predictors of human injury, produce far quicker results, and do not associated with animal cruelty. (Animal Testing Alternatives) Government and humanitarian agencies have financed researches into the substitutive strategies since the 1960s.

  2. Animal Experiments

    In the last decade, scientists with these views have learned to respect the animals for their own species observations and for their ability to communicate. On the reverse aspect, many scientists are firm believers of animal research. This group believes that experiments using animal have played a crucial role in

  1. Free essay

    A review of a case study on feline aggression and possible treatments

    Horwitz, Mills and Heath (2002) stated that '...lack of available vertical space may lead to a decrease in the cat's ability to regulate stress and a consequent increase in the incidents of aggression, toward either owners or other cats in a social group'.

  2. Invertebrate colonisation of leaf packs of different palatability in an upland river.

    Alder Oak <.001 Plastic <.001 Oak Plastic <.001 Table 2 ANOVA table showing differance in % leaf mass loss between leaf type and week. Results of Tukey post-hoc tests are shown. It was also shown that the proportions of grazers was significantly higher within the stream as a whole (Kick samples)

  1. Investigating the effect that group size has on the vigilant behaviour of flocks of ...

    Data collection was also stopped if there was an obvious disturbance among the birds (e.g. if a dog was near them). When data collection was complete the means for each of the type of behaviour for each group was calculated.

  2. This report was commissioned by Sunderland City Council to assess the ecological and educational ...

    The vegetation in the studied quadrates was found to be most similar to NVC community W21 (Crataegus monogyna-Hedera scrub). The sub-community was most similar to C31.812 with a goodness of fit of 65% suggesting a fair degree of correlation with the standard samples.

  1. Investigating whether body size affects the digestibility of antelopes.

    food, and as a source of money (Estes, 1991; Harrison and Bates, 1991; Nowak, 1999; Roosevelt and Heller, 1914; Walther, 1990). The lesser kudu is listed on the IUCN (The World Conservation Union) Red List of Threatened Species as conservation dependent (Nowak 1999).

  2. A Study of the Fishes Caught by Anglers in Downtown Madison, Wisconsin.

    Additionally, some frequency distributions were analyzed. These included the sizes of perch and bluegill and crappie (Figures 5 - 7), and the CPUE for each site (Figures 8 -11). Most of the analysis presented in the Tables and Figures does not include Lake Wingra because no fishes were caught there.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work