A Gene for Handedness? News Round-Up September 2013 2nd Edition

This write-up at MedWire News looks at fMRI research suggesting complex differences between striatal-Prefrontal Cortex connections in people in this study with Schizophrenia compared with a control group.

A PLOS One systematic literature review on ADHD suggests (amongst other findings) that comorbid oppositional or conduct disorder increased risk taking during gambling tasks. The evidence for the comorbid oppositional/conduct disorder link came from two of the included studies.

There is a brief but interesting write-up of a proposed framework for supporting clinicians when they are making difficult decisions.

Neuroscience

brain.1There is a very good piece on willpower by Christian Jarrett on using techniques such as routine building, gargling, distraction & clenching muscles.

There is an interesting write-up at New Scientist on the search for genes related to handedness. One candidate PCSK6 is associated with symmetry during development.

Evolutionary Psychiatry, Evolution & Culture

Neanderthaler_Fund

There was little DNA recovered from 10,000 year old copal preserved insects in this study. Copal is a precursor to amber which is relevant to an extensive collection of insects fossilised in amber dating back millions of years ago. The hope was that DNA could be extracted from these insects in this preserved state which would give useful insights into evolution. However it is interesting to note that DNA has been recovered from much older Neanderthal cave specimens and similarly for Woolly Mammoths. Indeed blood was recovered from one recently thawed mammoth. Analysis of ancient DNA is a current area of research interest which is providing fascinating insights into evolution.

Evidence of early clothing in humans and Neanderthals.

Evidence that Orang-Utans may plan their journeys many hours in advance.

Appendix

News Round-Up 2008-2011

News Round-Up 2012

Index: There are indices for the TAWOP site here and here Twitter: You can follow ‘The Amazing World of Psychiatry’ Twitter by clicking on this link. Podcast: You can listen to this post on Odiogo by clicking on this link (there may be a small delay between publishing of the blog article and the availability of the podcast). It is available for a limited period. TAWOP Channel: You can follow the TAWOP Channel on YouTube by clicking on this link. Responses: If you have any comments, you can leave them below or alternatively e-mail justinmarley17@yahoo.co.uk. Disclaimer: The comments made here represent the opinions of the author and do not represent the profession or any body/organisation. The comments made here are not meant as a source of medical advice and those seeking medical advice are advised to consult with their own doctor. The author is not responsible for the contents of any external sites that are linked to in this blog.

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