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

The Limbic System

Extracts from this document...


2.- "Discuss the role of the Limbic System." It seems that there is not a global agreement on the structure components of the Limbic System. Therefore a brief history will be given next with the intention to make more understandable the role of the limbic system. However the term limbic, that comes from the Latin word 'limbus', meaning boarder, was given by Paul Pierre Broca in 1878(1), who referred to it as the great Limbic Lobe. It was not until 1937 that it was given the role of emotion when James Papez seminal paper was titled "A proposed mechanism of emotion" then referred as the Papez circuit. Later in 1952, Paul D. MacLean came up with the term 'Limbic System' to describe Broca's Limbic Lobe. Maclean's formally suggested, with his "Triune Brain Theory", that the human brain was three brains in one: the Reptilian Complex, the Limbic System and the Neocortex (1). Even though the concept of the Limbic System has been expanded since by Nauta, Heimer and others; one is going to focus on the role of the components apparently most written about, of the Limbic System; the amygdala, the hippocampus, the hypothalamus and the thalamus. The Limbic System is evolved completely just in mammals and forms a fringe along the inner edge of the cerebrum. ...read more.


Nevertheless studies with alcohol says that such substance is directly implicated in disruption activity in the hippocampus through other routes, so far this impact is poorly understood, still it is seem as a high probability for memory damage.(7). Another important aspect that affects people's learning and memory is depression. Investigators have scanned the brain of healthy women and women with a background of different periods of depression and found that those with the longest periods of depression history have smaller hippocampus; they have also scored lower in tests of verbal memory which is directly connected to hippocampus function. This contradicted previous studies that thought reduction of the hippocampus happened with age (8). The hypothalamus has a cone-shaped structure in the brain which is located just below the thalamus and above the pituitary gland. It could probably be said that the hypothalamus is one of the busiest part of the brain. It is a very important part of the limbic system in the mediation of endocrine, autonomic and behavioural functions (5). It is in charge of regulating homeostatic processes in the body, it works as a thermostat , for example if one's room gets very cold it conveys this information and turns its thermostat on, or vice versa if one's room is too hot it turns off (4). ...read more.


References: (8) - Depression May Shrink Brain Structure , Sheline YI et al. Depression Duration but not Age Predicts Hippocampal Volume Loss in Medically Healthy Women with Recurrent Major Depression. The Journal of Neuroscience, vol. 19, no. 12, pp. 5034-5043, June 15, 1999. Adapted from materials provided by Washington University School Of Medicine, material available online from, http://www.sciencedaily.com/releases/1999/06/990616063411.htm, retrieved in October 2008. (4) - Endocrine System, material available online from www.kidshealth.org, retrieved in April 2008. (9) - FUNCTIONS OF THE HYPOTHALAMO-PITUITARY AXIS, material available online from, http://www.elp.manchester.ac.uk/pub_projects/2000/mnby6kas/function.htm, retrieved in October 2008. (5)-Hypothalamus, material available online from http://www.neuroanatomy.wisc.edu/coursebook/thalamus.pdf, retrieved in April 2008. (7) - Indirect Effects of Alcohol on Hippocampal Function, by National Institute of Health, material available online from, http://www.enotalone.com/article/11284.html, retrieved in October 2008. (2) - Rathus, S.A. (2007), Psychology, Concepts & Connections, 8th Edition, Wadsworth. USA. (10) - Reorganization of somatic sensory function in the human thalamus after stroke, Shinji Ohara, MD, PhD, Frederick A. Lenz, MD, PhD, material available online from http://www3.interscience.wiley.com/journal/86513451/abstract?CRETRY=1&SRETRY=0 retrieved in September 2008. (1) - The Limbic System by V. RajMohan, F. Mohandas, Elite Mission Hospital, Trichur, Kerala, India, material available online from www.indianjpsychiatry.org, retrieved in October 2008. (3) - The Limbic System, material available online from http://www.wisegeek.com/what-is-the-limbic-system.htm, retrieved in April 2008. (6) - The hunting of the hippocampus function, by Crusio, Eim E. (1997), material available online from, http://cogprints.org/28/, retrieved in April 2008. (11)-Thalamus, material available online from http://www.neuroanatomy.wisc.edu/coursebook/thalamus.pdf, retrieved in September 2008. ...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 Developmental Psychology 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 Developmental Psychology essays

  1. Discriminative stimulus training and selective stimulus control in rats

    2 Dull light/low tone 45.53 3 Bright light/high tone 55.8 4 Dull light/high tone 47 (VR16) Figure 3: Probe trials for rat 15, using different combinations of the 2 Stimulus. Results are the average for all observed sessions. Discussion During the discrimination training period, there is a distinct decline of

  2. Psychological and Sociological Perspectives On Human Development and Behaviour.

    There is continuing development of the reproductive system, with changes in the level of sex hormones in the bloodstream-giving rise to internal and external changes. For boys these changes include a deepening of the voice, enlargement of the penis and the growth of pubic and body hair.

  1. Student number: 0373390

    of the Children Act 1989 he is defined as a 'child in need'. Under this provision the local authority has a duty to assess the needs of John and to provide services outlined to minimise the effect of his disability (Schedule 2, paragraph 6), underpinned by the Education Act, 1996.

  2. "Theory affects the work of practitioners in the area of loss to varying degrees

    the object and what belongs to the self is differentiated and in the process the lost object is seen more realistically. This may be a plausible argument given that there is no evidence to suggest that Freud instructed the bereaved not to attend the gravesite of the deceased.

  1. Mental disorders can be classified in many ways but the most commonly used in ...

    This can be helped through transference, which involves the client transferring onto the therapist the emotions previously directed at something important in their life. Transference could result in a problem; if the client has repressed feelings of great love, it could be transferred onto the analyst who would have to

  2. For this assignment I will produce a case study showing how psychological theories can ...

    not be revealed to others outside the research team except in the anonymous form when the findings are reported. The findings for this research investigation cannot be sold or reused for any other research. The nursery that I conducted my research had a population of 25 children per session.

  1. Memory levels of processing

    One of these explanations was by Baddely and Hitch, 1974 (as cited in Groome, 1999) who emphasized the idea that the memory was a Working Memory which meant that the memory was in fact a place for processing information and analysis in the brain.

  2. Psychology was a branch of philosophy before it broke away into a distinctive discipline ...

    His preferred methodology for analysing his patients was the case study. Indeed, his case study investigations were the predominant practicality behind his psychoanalytic theory. Typically, in treating his clients he would use his self developed psychoanalysis techniques that were able to access unconscious thoughts; well at least that is what he claimed.

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