Archive for April, 2010

Homework till Thursday

Posted: April 29, 2010 in Psychology

Read

CC: 44-42

ORG 83+85(old book) or 79-81 (new book)

Examine one study related to the localization on a function.

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  1. External recording of brain:  EEG
    • Aims to detect brain activity from measurements made at the surface of the skull. Useful when interested in levels of sleep or different types of subjects.
    • Evaluation:
      • + Non inrasive and pratically useful
  2. – crude

  3. Scanning techniques: CAT, PET, MRI, f-MRI
    • These techniques use x-ray, injected substances or nothing to detect activity in the brain .
      • Page 80 in Oxford revision guides. Taxi drivers.
    • Evaluation:
      • + detailed knowledge
  4. + conscious participants can be used also while performing tasks like problem solving.

    -expensive

    -difficult to interpret

  5. Accidental damage: Gage, Clive Wearing
    • Compare the changes in psychological functioning with the location of the brain affected.
    • Evaluation:
      • + occurs ”naturally” so less ethical problems
  6. + a way to discover something ”new” -> start new investigations for example into new areas.

    -consent

    -lack of precision, very little control

    -comparison problem ”before/after” – as it is based on retrospect accounts

    -confounding variables – there might be other reasons for change

  7. Deliberate damage:
    • Eg. Lesioning – aim to investigating function by removing areas of the brain or destroying links between areas
      • Examples: Tsai (memory), Olds(eating), Thomson(memory)
    • Evaluation:
      • Ethical problems (the deliberate change of behaviour is radical and in reversible)
      • + Greater control and precision
  8. +the ability to compare behaviour and after alterations ->certainty of the effect of the damage

    -non human findings may not be legitmately generalized to humans due to qualitative differed.

    -platicity= the brain is a very flexible system which can compensate for damage

Localization of the Brain

Posted: April 27, 2010 in Psychology

Learning outcomes relevant to this:

  • Examine one study related to localization of function of the brain
    • i.e. Aim, IV/DV, procedure, result, implication (what it means, how to use this in a wider scope)
  • Discuss the use of brain imaging technologies in investigating the relationship between the biological factors and behaviour

Case – Phinneas Gage 1848:

A man, who suffered severe brain damage to his frontal lobes due to an accident. He then, based on family? accounts; changed his personality. He because more aggressive, used offensive language etc.

This is highly useful as it showed links between biology and behaviour.

Evaluation:

– Sources – can they be trusted?

  • ethics: consent
  • documentation: not written how we would write it now
  • knowledge: they don’t have half the knowledge we have now

– Other symptoms that wasn’t noticed

  • Cause-effect problem

Short Answer Question Steps

Posted: April 27, 2010 in Psychology

Writing skills

Step1 : take a look at the command term

Step2: read the question again and underline important words

Step3: write an outline + brainstorm

  • Explain – give a detailed account including reasons and causes

Mouse Party…

Posted: April 27, 2010 in Psychology

Just watched this mouse party thing about drugs. Really good way to learn about how drugs effect your brain.

http://learn.genetics.utah.edu/content/addiction/drugs/mouse.html

Hippocampus Presentation

Posted: April 20, 2010 in Psychology

The Hippocampus Presentation is done!

Done Finally!

Posted: April 18, 2010 in Psychology

Finally done with the presentation. Me and Jihan put the final touches to it today! Just one thing left to do, which is to ask Elin for some help with the studies done on the Hippocampus. Whoop Whoop!