About Careers MedBlog Contact us
Medindia LOGIN REGISTER
Advertisement

Part of Brain That Rotates Image Mentally Identified

by Kathy Jones on March 13, 2011 at 8:40 PM
Font : A-A+

 Part of Brain That Rotates Image Mentally Identified

Scientists from Udine, Italy, have found which hemisphere of the brain - left or right - rotates an image mentally.

A multidisciplinary team led by cognitive neuroscientist Tim Shallice and neurosurgeon Miran Skrap conducted the study on 55 patients who had recently had an operation to remove a brain tumour from either the left or right side of the brain.

Advertisement

The patients were shown a series of images of a dot inside an upright or tilted frame and were asked to reproduce its position inside an identical upright frame, a task requiring mental rotation of the image.

Results showed that patients whose tumours had been in the right parietal or in the left prefrontal cortices made a considerably larger number of errors than other patients.
Advertisement

The right parietal patients placed the mark in the right position with respect to a corner. However, they chose the wrong corner much more often that the other patients.

The left prefrontal patients got the corner right but were otherwise highly inaccurate in their responses.

This indicated that patients with tumours of the right parietal cortex who were unable to process the categorical spatial information and perform the mental rotation.

On the other hand, a left prefrontal tumour instead led to difficulties in the setting up of the specific program within the brain, which was necessary to organize the sequence of operations required to carry out the task.

The study appears in the February 2011 issue of Cortex.

Source: ANI
Advertisement
Advertisement
Advertisement

Recommended Reading

This site uses cookies to deliver our services.By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use  Ok, Got it. Close
×

Part of Brain That Rotates Image Mentally Identified Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests