The aim of this study was to find out if there were any differences in the brains of those who rely heavily on [?] navigational skills in their working life. The differences would be found in the [?] The sample consisted of 16 London [?] drivers who had passed '[?]' a series of tests regarding routes around London. The cab drivers were compared to a control group consisting of males matched to the drivers in terms of their [?] who had undergone MRI scans.
The method is best described as a [?]-experiment as the researchers did not manipulate the [?] variable in this study. Data was collected using MRI scans - specifically Voxel-Based Morphology and [?] counting. This data was [?] with the length of time the cab drivers had been licensed.
Results showed that the brains of the cab drivers showed significantly increased grey matter volume in the right and left hippocampi. This difference was found in the [?] hippocampus only.There was also a [?] correlation between the volume of grey matter in the hippocampus of the cab drivers and the time that they had been a taxi driver. More specifically, the longer they had been a cab driver the greater the volume of their [?] posterior hippocampus. It was also found that in the control group, the participants had a greater volume in the [?] hippocampus.