Antipsychotics and Brain Shrinkage
Antipsychotics and Brain Shrinkage:
An Update
Joanna Moncrieff June 19, 2013
Evidence that antipsychotics cause brain shrinkage has been accumulating over the last few years, but the psychiatric research establishment is finding its own results difficult to swallow. A new paper by a group of American researchers once again tries to ‘blame the disease,’ a time-honoured tactic for diverting attention from the nasty and dangerous effects of some psychiatric treatments. In 2011, these researchers, led by the former editor of the American Journal of Psychiatry, Nancy Andreasen, reported follow-up data for their study of 211 patients diagnosed for the first time with an episode of ‘schizophrenia’. They found a strong correlation between the level of antipsychotic treatment someone had taken over the course of the follow-up period, and the amount of shrinkage of brain matter as measured by repeated MRI scans.
The group concluded that “antipsychotics have a subtle but measurable influence on brain tissue loss” (1). This study confirmed other evidence that antipsychotics shrink the brain. When MRI scans became available in the 1990s, they were able to detect subtle levels of brain volume reduction in people diagnosed with schizophrenia or psychosis. This lead to the idea that psychosis is a toxic brain state, and was used to justify the claim that early treatment with antipsychotics was necessary to prevent brain damage. People even started to refer to these drugs as having “neuroprotective” properties, and schizophrenia was increasingly described in neo-Kraeplinian terms as a neurodegenerative condition(2). The trouble with this interpretation was that all the people in these studies were taking antipsychotic drugs. Peter Breggin suggested that the smaller brains and larger brain cavities observed in people diagnosed with schizophrenia in these and older studies using the less sensitive CT scans, were a consequence of antipsychotic drugs(3), but no one took him seriously.
http://forfreepsychology.wordpress.com/2013/06/20/antipsychotics-and-brain-shrinkage/
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