In and out of the brainBMJ 1996; 312 doi: https://doi.org/10.1136/bmj.312.7046.1618 (Published 22 June 1996) Cite this as: BMJ 1996;312:1618
- Sean Spence
Currently on show at the Functional Imaging Laboratory, Queen Square, is an exhibition of gouaches and drawings by the German artist Ingo Wirth. Much of Wirth's earlier work is rooted in Greek and German mythology, but in this new exhibition he has incorporated images taken from brain mapping, in particular positron emission tomography.
Functional, as opposed to structural, imaging sets out to study dynamic activity within the brain. In one approach, changes in regional cerebral blood flow are measured as an index of activity within local synaptic (neuronal) populations. Hence the changes that accompany a given task, …