Monthly Archives: October 2011

News Round-Up: October 2011 5th Edition

Researchers used EEG and fMRI to investigate lucid dreamers. The lucid dreamers were scanned whilst asleep and signalled that they were dreaming of clenching their fists by moving their eyes horizontally several times. Only two episodes were captured but they displayed similar activity to hand clenching. However these results should be viewed with caution as only two episodes were captured and it will be interesting to see the results of replication studies.

The Picalm gene product which has been linked to Alzheimer’s Disease has been investigated in one study where the researchers found evidence that it disrupted the ability of Amyloid to interfere with endocytosis which could inform further research in this area.

Psychiatry 2.0

There’s an interesting open letter regarding the use of blogs in research in which the authors compare the use of blogs with the traditional peer review process (via @EvoMRI).

Evolutionary Psychiatry

In research published in the Open Access journal ‘Mobile DNA’ , the researchers compared human and Chimpanzee DNA and found that the main differences resulted from the so-called junk DNA. The researchers conclude that this is consistent with the theory that the genetic differences between Chimpanzees and humans are mainly differences of gene regulation rather than gene differences.

In a post-mortem study in which researchers used 49000 gene probes in 269 brains across the lifespan, researchers obtained over a trillion pieces of information and found evidence that the expression of genes in the prefrontal cortex peaks just after birth. Following this a number of genes switch off and reduce towards middle age. In older adults the genes are increasingly expressed. The write-up covers a number of other studies with complex but very interesting results. In one study using 1.4 million probes to examine 57 human brains, the researchers found evidence that the brain location and timing influenced gene expression more significantly than individual variation.

Appendix

News Roundup 2008

News Roundup 2009

News Roundup 2010

Psychiatry 2.0

 

 

An index of the site can be found here. The page contains links to all of the articles in the blog in chronological order. 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.

 

New Version of Video on Insular Cortex Uploaded

I’ve just uploaded another version of the Model of the Insular Cortex with improved audio.

Blog Articles on the Insular Cortex (Brodmann Areas  13, 14 and 52)

YouTubing the Insular Cortex  What does the Insular Cortex Do Again? Insular Cortex Infarction in Acute Middle Cerebral Artery Territory Stroke The Insular Cortex and Neuropsychiatric Disorders Developing a Model of the Insular Cortex and Emotional Regulation Part 1 Developing a Model of the Insular Cortex: A Recap  The Relationship of Blood Pressure to Subcortical Lesions  Pathobiology of Visceral Pain  Interoception and the Insular Cortex  A Case of Neurogenic T-Wave Inversion   Video Presentations on a Model of the Insular Cortex  MR Visualisations of the Insula  The Subjective Experience of Pain*  How Do You Feel? Interoception: The Sense of the Physiological Condition of the Body  How Do You Feel – Now? The Anterior Insula and Human Awareness   Role of the Insular Cortex in the Modulation of Pain  The Insular Cortex and Frontotemporal Dementia   A Case of Infarct Connecting the Insular Cortex and the Heart  The Insular Cortex: Part of the Brain that Connects Smell and Taste?   Stuttered Swallowing and the Insular Cortex

An index of the site can be found here. The page contains links to all of the articles in the blog in chronological order. 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.

Videos on the Ear Uploaded

I’ve just uploaded some instructive videos from a 1940 Bosse Production on the structure and function of the Ear. The material (now in the Public Domain) is very clearly explained and although in black-and-white illustrates the points very well.

Sound Waves

Anatomy of the External Ear

Anatomy of the Middle Ear

Physiology of the Middle Ear

Structure of the Inner Ear

Physiology of the Inner Ear

An index of the site can be found here. The page contains links to all of the articles in the blog in chronological order. 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.