tag:blogger.com,1999:blog-1011660132120465673.post1098270919645228809..comments2023-09-08T19:32:19.540+01:00Comments on Charlotte - Chatting and Chuntering: Two way communication.CHARLOTTE'S RANThttp://www.blogger.com/profile/15924653828316135774noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-1011660132120465673.post-6912495614633816752012-05-07T19:12:10.660+01:002012-05-07T19:12:10.660+01:00Just to clarify: my comment on OCD vs AN(OCD) is n...Just to clarify: my comment on OCD vs AN(OCD) is not meant in any way to minimize the experience of living with such a condition. I just wanted to highlight that the consequences of AN-related obsessions and compulsions are life-threatening in a way that most other OCD syndromes are not.IrishUpnoreply@blogger.comtag:blogger.com,1999:blog-1011660132120465673.post-89920587146544018212012-05-07T18:36:39.169+01:002012-05-07T18:36:39.169+01:00Well, *physical* proximity in the brain =/= "...Well, *physical* proximity in the brain =/= "connected". It's whether the areas share pathways. The occipital lobe where color is processed is not really "close to" temporal lobe structures in a meaningful way vis a vie a cross-wiring theory. Caveat: I aint no neurologist, and these files are DUSTY MANG! My google-fu pulls up from wiki confirmation that neurons from visual areas DO ennervate temporal lobe structures, just not in the same areas or using the same pathways as the language areas.<br /><br />So, withuot going too far down this tangent, I'll just say I remain unconvinced that synesthesia is a cross-wiring problem, or that hardware "crosswiring" of hnger & fear in the lizard brain is what's going on with AN. Brain growth in terms of the processes we're interested in right now is primarily in the cerebrum. Specifically ithe pre-frontal cortex. <br /><br />To me the key thing is that in essence, AN is not different from other OCD spectrum phenomena. EXCEPT that where needing to avoid public bathrooms is inconvenient and compulsive hand-washing damaging but survivable, avoiding food and compulsive purging are deadly. I'm not ruling out that cerebellar abnormalities are not in play; I'm just thinking that the KEY deficits are in frontal and prefrontal cortext structures.IrishUpnoreply@blogger.comtag:blogger.com,1999:blog-1011660132120465673.post-19577919315713728262012-05-07T07:04:08.212+01:002012-05-07T07:04:08.212+01:00Jeezzzz Irish, you are so clever. OK, another the...Jeezzzz Irish, you are so clever. OK, another theory for you.<br /><br />Watching Ramachandran talk about synathesia, he contended that the two areas of the brain that govern language and colour are very close to one another. Hence it would only take one or two neurons to fizz their electricity to the wrong receptor for someone to develop synathesia.<br /><br />How about the two areas of the brain that deal with "flight or fight" and "hunger" are pretty close to one another and it would only take one or two neurons to fizz to the wrong area in the case of anorexia?<br /><br />This would also explain why the reaction to food and why it can become a "default" pathway, in times of stress?CHARLOTTE'S RANThttps://www.blogger.com/profile/15924653828316135774noreply@blogger.comtag:blogger.com,1999:blog-1011660132120465673.post-39076147321776308592012-05-06T15:36:12.693+01:002012-05-06T15:36:12.693+01:00"Therefore my theory is that the rewiring in ..."Therefore my theory is that the rewiring in the brain that we all talk about has taken place in the sc..."<br /><br />Hmm, this is very interesting framing. I have been used to thinking of these things differently.<br /><br />Neuroplasticity is the ability of the brain to reconfigure itself through arboriazation. Arborization is stimulated at the electrochemical level - based on the stimulation that brain cells are getting from exogenous (outside the body) and endogenous (inside the body) sources. IOW, to use computer analogies, NP is a feature of our brain's HARDWARE.<br /><br />Our conscious and subconscious are more like software. Our conscious tends to work like a serial processor - keeps everything linear, prioritized, categorized. Our subconscious is more like a parallel processor: it's doing a ton of things simultaneously, on all kinds of levels, and yet is does not discriminate between those functions in a linear or hierarchical fashion. The conscious decides; the subconscious does what it does and wants what it wants.<br /><br />STRUCTURALLY speaking, it's certain that lots of process happen more in the cerebrum (thinking brain, if you will) vs. "lizard brain" - the older parts of our CNS like the cerebellum and mesencephalon. Or happen more in right hemisphere vs left hemisphere structures. However, humans use all parts of their brains for both conscious and subconscious processes.<br /><br />There is actually every reason to think that you are spot on about periods of increased arborization being also periods of vulnerability to 'brain damage'. I seriously doubt any developmental neurologist could take issue with this. This increased vulnerability at key areas of neurological development is one of the central discoveries of Behavioral Teratology<br />(http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1475302/?page=1). Recently, the idea that principles of BT apply to later stages of brain development, has received more attention:<br />http://ngm.nationalgeographic.com/2011/10/teenage-brains/dobbs-text<br /><br />Orthagonal to C/SC is the concept of autonomous/voluntary neurology. "Pavlov's Dogs" are an example of conditioned responses, that largely happen within the autonomous nervous system. However in humans, because of the C/SC, conscious processes can be recruited in autonomous nervous system processes. As a for instance: Panic Attacks. So, we all can experience a "fight or flight" response gone amok - tachycardia, arrythmia, shortness of breath. It feels very scary. BUT, for someone with high anxiety/low distress tolerance, this experience is nearly overwhelming. SC - they associate the attack with the circumstances in which it happened- eg. elevator. Their conscious mind perseverates on the sensations of the panic attack, and begins to "worry" about having another one when an (eg) elevator ride is anticipated, well before an elevator happens. Violla - full blown elevator phobia. Treatment: teach physical skills that dampen autonomous responses like deep nose breathing (releases CO2 from blood, physiologically "calming" fight-or-flight processes); teach cognitive skills that interupt perseveration; teach behavioral responses like confronting elevators until the PA is no longer experienced or is no longer experienced as traumatic.<br /><br />Long story short MM, and other treatment paradigms that support exposure and attack ED across neurological processes work because they are treating abnormalities on all axes of brain function: hardware, software, autonomic and voluntary, concious and subconcious.IrishUphttps://www.blogger.com/profile/00897171486597041582noreply@blogger.comtag:blogger.com,1999:blog-1011660132120465673.post-13069545384874134002012-05-06T14:21:37.472+01:002012-05-06T14:21:37.472+01:00Agree that FBT could work like exposure therapy an...Agree that FBT could work like exposure therapy and wish that had been explained when we tried it - but then again that was so many moons ago that they almost undoubtedly didn't know. <br /><br />It's interesting about changing people who aren't "normal" - it does beg the question as to how much other people can expect or encourage change in those who find it difficult - or it does to me anyway!Fiona Marcellahttps://www.blogger.com/profile/07985022521354870620noreply@blogger.comtag:blogger.com,1999:blog-1011660132120465673.post-86837547000792772972012-05-06T12:40:37.510+01:002012-05-06T12:40:37.510+01:00In terms of the Maudsley Method... I think that wh...In terms of the Maudsley Method... I think that when it does work (and it doesn't always work...), the reason why it works is because the person with AN becomes de-sensitised to the anxiety associated with eating. The person also begins to realise that what they really feared doesn't actually happen. I think FBT works like exposure therapy.<br /><br />In terms of brain development and mental illness, autism or deviant behaviour: there is a lot of research suggesting that the brain does develop 'unusually' in people with some mental illnesses, autism and (e.g.) psychopathic behaviours. But in all such cases the cause of the unusual brain development arises from a mix of genetic and environmental factors - with the latter switching on or off various genes (epigenetics). <br /><br />You are right that there isn't such a things 'normal'. The term 'normal' is derived from statistics and population measures, where normal relates to deviation from a mean score. Human characteristics in a sufficiently large population are normally distributed; i.e. they fit to a bell shaped curve, with 67% of people lying within 1 standard deviation either side from the mean score for any given characteristic. When we talk about what is normal behaviour, we are referring to what is healthy and what society as a whole deems acceptable; i.e. does the person's behaviour cause distress/harm to themselves or to those around them?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1011660132120465673.post-41740597624289712002012-05-06T10:06:38.195+01:002012-05-06T10:06:38.195+01:00Maybe why my contract has worked so well, hey...Maybe why my contract has worked so well, hey...Bev Mattocks Osbornehttps://www.blogger.com/profile/02353718855920959097noreply@blogger.com