My hypothesis is that the scrotum, which in mammals, is often exposed, relatively hairless, and with thin skin and little subcutaneous tissue, may have evolved for perhaps a different reason than simply to provide a lower temperature for spermatogenesis. Consider that humans produce about 25,000 sperm every minute. Why so many?…
Read moreThis letter to the Editor was published in the November 2001 issue of Parkhurst Exchange, p7 Gentlemen: In the June 2001 issure of Parkhurst Exchange, your consultant AS reported no serious side effects from the longterm use of pantoprazole, to his knowledge. Gastric acid suppressive therapy in general has been…
Read moreThis article was published in the journal “Psychiatry” in Jan 1989. The citation is: Olders H: A Computer on my Desk? Do I Have a Choice? Psychiatry 1989 Jan; 3(1): 7-11, 21-24 Download article as pdf file
Read moreThis presentation was given jointly by Dr. Carol Brebion and myself at Clinical Grand Rounds, Department of Psychiatry, SMBD – Jewish General Hospital, on 1997-10-9. Notes Slides
Read moreThis talk was given at Palliative Care McGill Rounds, at the Montreal General Hospital, on 2004-2-11, and at Consultation-Liaison Psychiatry Rounds, SMBD-Jewish General Hospital, on 2004-2-19. Presentation slides with notes
Read moreThis talk was to the inpatient psychiatry team (4 East) at the SMBD-Jewish General Hospital, on 1998-11-5. Notes Slides
Read moreThis lecture was given yearly from 1987 to 1991 to McGill psychiatry residents as part of the Diploma Course, Continuing Care seminar (Block H). Handout
Read moreA handout for Family Medicine residents at the SMBD-Jewish General Hospital, as part of a course I taught as the Chief Resident in Psychiatry. Handout
Read moreBelow is the text of a welcoming speech I made, as Program Director of the Psychogeriatrics Programme, to a group of foster home proprietors, at an annual event called the Proprietors’ Day Seminar, put on by the Psychogeriatric Residences Team at Douglas Hospital. Merci beaucoup, Dr Tahta, pour votre introduction.…
Read moreThis presentation was given at the 4th Annual Inter-Hospital Stroke Team Conference, SMBD – Jewish General Hospital, on 1998-10-23. Notes Slides
Read morePresentation given to “Friends for Mental Health”, a self-help group of friends and relatives of the mentally ill; Dorval, Québec, on 2000-11-15. Slides and notes
Read moreTalk to the Senior Citizens’ Forum of Montreal, on 1993-5-31. mental health & the elderly
Read morePresentation to Family Physicians at Clinical Day, “Psychiatric Issues in Family Medicine”, McGill University Department of Family Medicine, Hotel Europa, Montréal, on 1998-5-15. Handout Slides
Read moreThis presentation was given to the physicians at Ste. Anne’s Hospital, in Medicine Rounds, on 2006-1-31. Download a pdf of the presentation slides and notes here.
Read moreThis presentation was made at the Mental Health 60+ Monthly Teaching Rounds, at CLSC René-Cassin, on 2005-11-8. Download a pdf of the slides and notes here Handout (english) Handout (français)
Read moreThe Q&A response to the question “What could multiple hyperdensities on brain MRI in the absence of migraine indicate?” (Parkhurst Exchange, April 2010, p28) did not include B12 deficiency as a possible cause. There are a number of case reports (1-4) reporting the finding of white matter hyperintensities on T2-weighted…
Read moreWhile catching up on my reading, I came across an item in “Consultant’s Corner” which piqued my interest, and I am writing to bring both your readers and your consultant up to date. In the Aug 2007 issue of the Canadian Journal of CME, a question was submitted by a…
Read moreThe article “Age-related macular degeneration” Oct 2008, p52) lists the risk factors for AMD as age, genetics, history of smoking, Caucasian race, and diet low in antioxidants. Not mentioned was the association between a lower risk of AMD and higher fish and/or omega-3 fatty acid consumption. Augood C, Chakravarthy U,…
Read moreWhen I was a medical student at McGill in the late 1970s, we learned a straightforward explanation for the cause of Type 2 diabetes, the most common form of diabetes in adults, accounting for about 90 per cent of all diabetes cases. We were told the insulin resistance responsible for…
Read moreGout is caused by an excess of uric acid (urate) in the system, which can then form crystals in various places, including the joint of the big toe. Crystals in the joint cause inflammation and pain. Excess uric acid can be due to excessive dietary intake of purines, insufficient urinary…
Read moreMonday, March 30, 2015 Executive Summary This is an abstract of the literature on the use of psychostimulants to treat psychiatric conditions in adults and the elderly. The results are presented primarily in two sections: the first section reports on studies in which psychostimulants, primarily methylphenidate (MPH) were used as…
Read moreGrandison, R. C., M. D. Piper, and L. Partridge (2009) Nature 462:1061-1064. Amino-acid imbalance explains extension of lifespan by dietary restriction in Drosophila. Dietary restriction extends healthy lifespan in diverse organisms and reduces fecundity. It is widely assumed to induce adaptive reallocation of nutrients from reproduction to somatic maintenance, aiding…
Read moreHenry Olders, MD November 6, 2013 Research Proposal: Treating Cancer-Related Anorexia-Cachexia with a Methionine Restricted Diet Anorexia and cachexia are frequent concomitants of the later stages of cancer, and contribute significantly to poor quality of life (QOL). Moreover, family members and friends of cancer patients with anorexia and cachexia are…
Read moreWhat does it mean to be conscious? Does it even have a meaning? As a psychiatrist, I am influenced by the way in which the terms “conscious”, “unconscious” and “subconscious” are used. The latter two terms generally refer to perceptions or emotions or thoughts that we are not aware of…
Read more2012-12-19 This table presents results of using the HammingNN classifier with a variety of publicly available datasets that are frequently used for development and testing of classifier paradigms. For comparison purposes, I’ve included results from 3 other classifier paradigms. Note: you may need to widen your browser window to view…
Read moreAs a medical student in the early 1980’s, I was very excited when we were introduced to the physiology behind neurology. Having previously graduated in Electrical Engineering (Waterloo, 1970) and with several years of work experience in computer systems engineering, I immediately saw the potential for modeling neural networks using…
Read moreI made a presentation about my classifier to Emily Coffey, at the time a PhD candidate in the Cognitive Neuroscience Lab at the Montreal Neurological Institute, and her colleagues, on 2011-1-21. Download a pdf of the presentation slides and notes.
Read moreSince my medical school days, I’ve been mulling over some ideas for artificial neural networks that adhere more closely to the physiology that I studied. Over the past couple of years, I finally implemented those ideas, using the Forth programming language on a Macintosh. The process went considerably faster than…
Read moreBelow is an article I wrote in 1989, describing my ideas for a neural network derived from my knowledge of physiology from medical student days, my studies in behaviour from psychiatry residency and practice, and computer principles from my time in engineering. A Neural Network Model Based On Brain Physiology…
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