Questions About Remote Learning?

meguire (2000)
Updated: 9/20/2020
meguire (2000)
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Storyboard Text

  • AIM
  • CABBIES (TAXI DRIVERS) ARE KNOWN FOR THEIR EXCEPTIONAL KNOWLEDGE OF THE CITY
  • MEGUIRE WONDERED IF THE BRAINS OF THE CABBIES WOULD BE DIFFERENT...
  • HYPOTHESIS
  • PROCEDURE
  • right-handed
  • Had license for at least 1.5 years
  • SHE SELECTED 16 PARTICIPANTS WITH THE FOLLOWING CONTROLLED VARIABLES:
  • Male
  • 'Knowledge' test passed
  • ESPECIALLY FROM THE MANY HOURS THEY'VE SPENT DRIVING THROUGH THE STREETS OF LONDON
  • This is a study on how cognitive processes may lead to Neuroplasticity in the hippocampus
  • PROCEDURE
  • THEY THEN CONDUCTED MRI SCANS SINGLE-BLINDED(LY) - to prevent bias
  • THE VBM SHOWED THAT THE VOLUME OF THE RIGHT POSTERIOR HIPPOCAMPI CORRELATED TO THE TIME SPENT AS A CABBIE
  • QUASI-EXPERIMENT independent variable uncontrollable; natural cause & effect
  • RESULTS
  • AND SO, SHE DECIDED TO CONDUCT A QUASI-EXPERIMENT
  • THE CONTROLS, ON THE OTHER HAND, WERE TAKEN FROM AN MRI DATABASE
  • The results obtained were then compared against a control group consisting of 50 left-handed, non-cabbie males
  • CONCLUSION
  • The anterior hippocampal region is involved in the coding of new environmental layouts
  • VBM: Voxel Based Morphometry used to measure density of grey matterPIXEL COUNTINGto measure the area of the hippocampus
  • THESE WERE LATER MEASURED VIA VBM AND PIXEL COUNTING
  • Other than hippocampal differences, no other changes were noted.
  • PIXEL COUNTING REVEALED THAT THE POSTERIOR HIPPOCAMPUS WAS SIGNIFICANTLY LARGER AND THE ANTERIOR HIPPOCAMPUS WAS SIGNIFICANTLY SMALLER
  • THIS LINKS TO LOCALISATION OF FUNCTION
  • Maguire believes this demonstrated the hippocampus' ability to change according to environmental demands.
  • Posterior hippocampus is involved in learned spatial information
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