btdt Posted February 10, 2015 Share Posted February 10, 2015 http://jop.sagepub.com/content/21/5/477 Selective verbal and spatial memory impairment after 5-HT1A and 5-HT2A receptor blockade in healthy volunteers pre-treated with an SSRI M. Wingen Experimental Psychopharmacology Unit, Faculty of Psychology, Brain & Behaviour Institute, Maastricht University, the Netherlands,m.wingen@psychology.unimaas.nl K.P.C. Kuypers Experimental Psychopharmacology Unit, Faculty of Psychology, Brain & Behaviour Institute, Maastricht University, the Netherlands J.G. Ramaekers Experimental Psychopharmacology Unit, Faculty of Psychology, Brain & Behaviour Institute, Maastricht University, the Netherlands. AbstractSerotonergic neurotransmission has been implicated in memory impairment. It is uncLear however if memory performance is mediated through general 5-HT availability, through specific 5-HT receptors or both. The aim of the present study was to assess the contribution of 5-HT reuptake inhibition and specific blockade of 5-HT1A and 5-HT2Areceptors to memory impairment. The study was conducted according to a randomized, double-blind, placebo-controlled, four-way cross-over design including 16 healthy volunteers. The treatment consisted of oral administration of escitalopram 20 mg + placebo, escitalopram 20 mg + ketanserin 50 mg, escitalopram 20 mg + pindolol 10 mg and placebo on 4 separate days with a washout period of minimum 7 days. Different memory tasks were performed including verbal memory, spatial working memory and reversal learning. Escitalopram showed an impairing effect on immediate verbal recall which nearly reached statistical significance. No effects of escitalopram were found on other types of memory. In combination with pindolol, immediate verbal recall was significantly impaired. Escitalopram in combination with ketanserin impaired spatial working memory significantly. No effects were found on reversal learning. Selective impairment of immediate verbal recall after a 5-HT1A partial agonist and selective impairment of spatial working memory performance after 5-HT2A receptor antagonist, both in combination with a selective serotonergic reuptake inhibitor (escitalopram), suggests that 5-HT1A and 5-HT2A receptors are distinctly involved in verbal and spatial memory. memory serotonin escitalopram pindolol ketanserin Articles citing this article Serotonin Regulates Performance Nonmonotonically in a Spatial Working Memory NetworkCereb Cortex September 1, 2014 24: 2449-2463 Abstract Full Text Full Text (PDF) The role of serotonin in cognitive function: evidence from recent studies and implications for understanding depressionJ Psychopharmacol July 1, 2013 27: 575-583 Abstract Full Text Full Text (PDF) 5-HT1A Receptor Agonists Enhance Pyramidal Cell Firing in Prefrontal Cortex Through a Preferential Action on GABA InterneuronsCereb Cortex July 1, 2012 22: 1487-1497 Abstract Full Text Full Text (PDF) sorry if this is here already I could not find it if it is. if it is in the incorrect format sorry again I can't do the mental gymnastics to a) read and recall the rules and apply them to this post ...not today I think this is important enough to bend some rules and hope it opens some eyes like it just opened mine not that I did not know this in my own way but now the knowing has some back up. Slice and dice it anyway you like as long as it is digestible. I think I will take a look at the 2014 study linked above. WARNING THIS WILL BE LONG Had a car accident in 85 Codeine was the pain med when I was release from hosp continuous use till 89 Given PROZAC by a specialist to help with nerve pain in my leg 89-90 not sure which year Was not told a thing about it being a psych med thought it was a pain killer no info about psych side effects I went nuts had hallucinations. As I had a head injury and was diagnosed with a concussion in 85 I was sent to a head injury clinic in 1990 five years after the accident. I don't think they knew I had been on prozac I did not think it a big deal and never did finish the bottle of pills. I had tests of course lots of them. Was put into a pain clinic and given amitriptyline which stopped the withdrawal but had many side effects. But I could sleep something I had not done in a very long time the pain lessened. My mother got cancer in 94 they switched my meds to Zoloft to help deal with this pressure as I was her main care giver she died in 96. I stopped zoloft in 96 had withdrawal was put on paxil went nutty quit it ct put on resperidol quit it ct had withdrawal was put on Effexor... 2years later celexa was added 20mg then increased to 40mg huge personality change went wild. Did too fast taper off Celexa 05 as I felt unwell for a long time prior... quit Effexor 150mg ct 07 found ****** 8 months into withdrawal learned some things was banned from there in 08 have kept learning since. there is really not enough room here to put my history but I have a lot of opinions about a lot of things especially any of the drugs mentioned above. One thing I would like to add here is this tidbit ALL OPIATES INCREASE SEROTONIN it is not a huge jump to being in chronic pain to being put on an ssri/snri and opiates will affect your antidepressants and your thinking. As I do not update much I will put my quit date Nov. 17 2007 I quit Effexor cold turkey. http://survivingantidepressants.org/index.php?/topic/1096-introducing-myself-btdt/ There is a crack in everything ..That's how the light gets in Link to comment Share on other sites More sharing options...
MikeThealien Posted February 13, 2015 Share Posted February 13, 2015 Very interesting! I was on Escitalopram for more than 4 years. I have now been off of it for around 3.5 years. I am left with a lot of seemingly permentant issues from this medication. I can identify with so much in your post. Exercise, Diet, and healthy lifestyle routine have gotten me as far as I can get, but I still am searching for a way to repair or reverse the cognitive, dissociative, and memory issues. I believe that the Escitalopram had a lot to do with my current predicament. Thanks again for sharing these! Link to comment Share on other sites More sharing options...
westcoast Posted April 7, 2015 Share Posted April 7, 2015 peter breggin calls them brain-disabling. i don't feel stupider, but I am. the fog makes it less obvious to me. 2009: Cancer hospital said I had adjustment disorder because I thought they were doing it wrong. Their headshrinker prescribed Effexor, and my life set on a new course. I didn't know what was ahead, like a passenger on Disneyland's Matterhorn, smiling and waving as it climbs...clink, clink, clink. 2010: Post surgical accidental Effexor discontinuation by nurses, masked by intravenous Dilaudid. (The car is balanced at the top of the track.) I get home, pop a Vicodin, and ... Whooosh...down, down, down, down, down...goes the trajectory of my life, up goes my mood and tendency to think everything is a good idea.2012: After the bipolar jig was up, now a walking bag of unrelated symptoms, I went crazy on Daytrana (the Ritalin skin patch by Noven), because ADHD was a perfect fit for a bag of unrelated symptoms. I was prescribed Effexor for the nervousness of it, and things got neurological. An EEG showed enough activity to warrant an epilepsy diagnosis rather than non-epileptic ("psychogenic") seizures. 2013-2014: Quit everything and got worse. I probably went through DAWS: dopamine agonist withdrawal syndrome. I drank to not feel, but I felt a lot: dread, fear, regret, grief: an utter sense of total loss of everything worth breathing about, for almost two years. I was not suicidal but I wanted to be dead, at least dead to the experience of my own brain and body. 2015: I began to recover after adding virgin coconut oil and organic grass-fed fed butter to a cup of instant coffee in the morning. I did it hoping for mental acuity and better memory. After ten days of that, I was much better, mood-wise. Approximately neutral. And, I experienced drowsiness. I could sleep. Not exactly happy, I did 30 days on Wellbutrin, because it had done me no harm in the past. I don't have the DAWS mood or state of mind. It never feel like doing anything if it means standing up. In fact, I don't especially like moving. I'm a brain with a beanbag body. Link to comment Share on other sites More sharing options...
btdt Posted April 7, 2015 Author Share Posted April 7, 2015 I noticed it when I was drugged but near as much as I noticed it once I was off drugs... seems when I was drugged I was too dense to know I was dense... not sure if that is the same thing your saying or not ... I see it now. WARNING THIS WILL BE LONG Had a car accident in 85 Codeine was the pain med when I was release from hosp continuous use till 89 Given PROZAC by a specialist to help with nerve pain in my leg 89-90 not sure which year Was not told a thing about it being a psych med thought it was a pain killer no info about psych side effects I went nuts had hallucinations. As I had a head injury and was diagnosed with a concussion in 85 I was sent to a head injury clinic in 1990 five years after the accident. I don't think they knew I had been on prozac I did not think it a big deal and never did finish the bottle of pills. I had tests of course lots of them. Was put into a pain clinic and given amitriptyline which stopped the withdrawal but had many side effects. But I could sleep something I had not done in a very long time the pain lessened. My mother got cancer in 94 they switched my meds to Zoloft to help deal with this pressure as I was her main care giver she died in 96. I stopped zoloft in 96 had withdrawal was put on paxil went nutty quit it ct put on resperidol quit it ct had withdrawal was put on Effexor... 2years later celexa was added 20mg then increased to 40mg huge personality change went wild. Did too fast taper off Celexa 05 as I felt unwell for a long time prior... quit Effexor 150mg ct 07 found ****** 8 months into withdrawal learned some things was banned from there in 08 have kept learning since. there is really not enough room here to put my history but I have a lot of opinions about a lot of things especially any of the drugs mentioned above. One thing I would like to add here is this tidbit ALL OPIATES INCREASE SEROTONIN it is not a huge jump to being in chronic pain to being put on an ssri/snri and opiates will affect your antidepressants and your thinking. As I do not update much I will put my quit date Nov. 17 2007 I quit Effexor cold turkey. http://survivingantidepressants.org/index.php?/topic/1096-introducing-myself-btdt/ There is a crack in everything ..That's how the light gets in Link to comment Share on other sites More sharing options...
Administrator Altostrata Posted April 9, 2015 Administrator Share Posted April 9, 2015 btdt, do not invite me to edit your posts. I don't have time for this. And you know you must start a topic in Journals in the proper format. If you can't do that, start the topics in Media instead. This is not medical advice. Discuss any decisions about your medical care with a knowledgeable medical practitioner. "It has become appallingly obvious that our technology has surpassed our humanity." -- Albert Einstein All postings © copyrighted. Link to comment Share on other sites More sharing options...
Moderator Emeritus dalsaan Posted April 9, 2015 Moderator Emeritus Share Posted April 9, 2015 btdt, Perhaps you can print the post with the format instructions so that it's easier to follow. This helps, you, us and everyone else to make best use of the journal section as a repository of knowledge D Please note - I am not a medical practitioner and I do not give medical advice. I offer an opinion based on my own experiences, reading and discussion with others.On Effexor for 2 months at the start of 2005. Had extreme insomnia as an adverse reaction. Changed to mirtazapine. Have been trying to get off since mid 2008 with numerous failures including CTs and slow (but not slow enough tapers)Have slow tapered at 10 per cent or less for years. I have liquid mirtazapine made at a compounding chemist. Was on 1.6 ml as at 19 March 2014. Dropped to 1.5 ml 7 June 2014. Dropped to 1.4 in about September. Dropped to 1.3 on 20 December 2014. Dropped to 1.2 in mid Jan 2015. Dropped to 1 ml in late Feb 2015. I think my old medication had run out of puff so I tried 1ml when I got the new stuff and it seems to be going ok. Sleep has been good over the last week (as of 13/3/15). Dropped to 1/2 ml 14/11/15 Fatigue still there as are memory and cognition problems. Sleep is patchy but liveable compared to what it has been in the past. DRUG FREE - as at 1st May 2017 >My intro post is here - http://survivingantidepressants.org/index.php?/topic/2250-dalsaan Link to comment Share on other sites More sharing options...
btdt Posted April 10, 2015 Author Share Posted April 10, 2015 btdt, Perhaps you can print the post with the format instructions so that it's easier to follow. This helps, you, us and everyone else to make best use of the journal section as a repository of knowledge D No printer...I am lucky to have computer access. WARNING THIS WILL BE LONG Had a car accident in 85 Codeine was the pain med when I was release from hosp continuous use till 89 Given PROZAC by a specialist to help with nerve pain in my leg 89-90 not sure which year Was not told a thing about it being a psych med thought it was a pain killer no info about psych side effects I went nuts had hallucinations. As I had a head injury and was diagnosed with a concussion in 85 I was sent to a head injury clinic in 1990 five years after the accident. I don't think they knew I had been on prozac I did not think it a big deal and never did finish the bottle of pills. I had tests of course lots of them. Was put into a pain clinic and given amitriptyline which stopped the withdrawal but had many side effects. But I could sleep something I had not done in a very long time the pain lessened. My mother got cancer in 94 they switched my meds to Zoloft to help deal with this pressure as I was her main care giver she died in 96. I stopped zoloft in 96 had withdrawal was put on paxil went nutty quit it ct put on resperidol quit it ct had withdrawal was put on Effexor... 2years later celexa was added 20mg then increased to 40mg huge personality change went wild. Did too fast taper off Celexa 05 as I felt unwell for a long time prior... quit Effexor 150mg ct 07 found ****** 8 months into withdrawal learned some things was banned from there in 08 have kept learning since. there is really not enough room here to put my history but I have a lot of opinions about a lot of things especially any of the drugs mentioned above. One thing I would like to add here is this tidbit ALL OPIATES INCREASE SEROTONIN it is not a huge jump to being in chronic pain to being put on an ssri/snri and opiates will affect your antidepressants and your thinking. As I do not update much I will put my quit date Nov. 17 2007 I quit Effexor cold turkey. http://survivingantidepressants.org/index.php?/topic/1096-introducing-myself-btdt/ There is a crack in everything ..That's how the light gets in Link to comment Share on other sites More sharing options...
btdt Posted June 26, 2015 Author Share Posted June 26, 2015 5=HT1A Receptor agonist in Pot. Cannabidiol (CBD) is one of at least 85 active cannabinoids identified in cannabis. "Recently, it was found to be an antagonist at the putative new cannabinoid receptor, GPR55, a GPCR expressed in the caudate nucleus and putamen.[37] Cannabidiol has also been shown to act as a 5-HT1A receptor agonist,[38] an action which is involved in its antidepressant,[21][39] anxiolytic,[39][40] andneuroprotective[41][42] effects. Cannabidiol is an allosteric modulator of μ and δ-opioid receptors.[43] Cannabidiol's pharmacological effects have also been attributed to PPAR-γ receptor agonism and intracellular calcium release.[5]" https://en.wikipedia.org/wiki/Cannabidiol WARNING THIS WILL BE LONG Had a car accident in 85 Codeine was the pain med when I was release from hosp continuous use till 89 Given PROZAC by a specialist to help with nerve pain in my leg 89-90 not sure which year Was not told a thing about it being a psych med thought it was a pain killer no info about psych side effects I went nuts had hallucinations. As I had a head injury and was diagnosed with a concussion in 85 I was sent to a head injury clinic in 1990 five years after the accident. I don't think they knew I had been on prozac I did not think it a big deal and never did finish the bottle of pills. I had tests of course lots of them. Was put into a pain clinic and given amitriptyline which stopped the withdrawal but had many side effects. But I could sleep something I had not done in a very long time the pain lessened. My mother got cancer in 94 they switched my meds to Zoloft to help deal with this pressure as I was her main care giver she died in 96. I stopped zoloft in 96 had withdrawal was put on paxil went nutty quit it ct put on resperidol quit it ct had withdrawal was put on Effexor... 2years later celexa was added 20mg then increased to 40mg huge personality change went wild. Did too fast taper off Celexa 05 as I felt unwell for a long time prior... quit Effexor 150mg ct 07 found ****** 8 months into withdrawal learned some things was banned from there in 08 have kept learning since. there is really not enough room here to put my history but I have a lot of opinions about a lot of things especially any of the drugs mentioned above. One thing I would like to add here is this tidbit ALL OPIATES INCREASE SEROTONIN it is not a huge jump to being in chronic pain to being put on an ssri/snri and opiates will affect your antidepressants and your thinking. As I do not update much I will put my quit date Nov. 17 2007 I quit Effexor cold turkey. http://survivingantidepressants.org/index.php?/topic/1096-introducing-myself-btdt/ There is a crack in everything ..That's how the light gets in Link to comment Share on other sites More sharing options...
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