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Gareth Furber

CogNet - 0 views

Tero Toivanen

Phasic Firing Of Dopamine Neurons Is Key To Brain's Prediction Of Rewards - 0 views

  • Our research findings provide a direct functional link between the bursting activity of midbrain dopamine neurons and behavior. The research has significant applications for the improvement of health, because the dopamine neurons we are studying are the same neurons that become inactivated during Parkinson's Disease and with the consumption of psychostimulants such as cocaine and amphetamine
  • Midbrain dopamine neurons fire in two characteristic modes, tonic and phasic, which are thought to modulate distinct aspects of behavior. When an unexpected reward is presented to an individual, midbrain dopamine neurons fire high frequency bursts of electrical activity. Those bursts of activity allow us to learn to associate the reward with cues in our environment, which may predict similar rewards in the future.
  • When researchers placed the mice in reward-based situations, they found that the mice without the NMDA receptor in their dopaminergic neurons could not learn tasks that required them to associate sensory cues with reward. Those same mice, however, were able to learn tasks that did not involve an association with rewards.
MrGhaz .

Why Do You Need Feedback? It Can Sometimes Make You Feel Quite Insecure - 0 views

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    Imagine that you've been cast away on a desert island. You live completely alone. You have enough to eat and drink. You have shelter. It may even be quite pleasant. But there's no-one else around. After a while you start to feel that some thing s you're doing may be rather strange. One of the things you're lacking is feedback. No-one is giving you any information about how you're getting on. No-one responding to what you do. Without feedback it is difficult to regulate what you do.
Daly de Gagne

Lerner's Notebook: New Mindfulness Book for Therapists by Daniel J. Siegel - 0 views

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    Very interesting, positive review of psychiatrist Daniel J Siegle's new book on mindful for psychotherapists. 
Sonny Cher

Energy Pills for Extra Energy - 2 views

I am always tired after working for the whole day. And my boyfriend is already mad at me because he felt neglected. I do not have time for him to go out on a date because I do not have the energy t...

legal highs psychology blog neuroscience health mental-health brain psychiatry

started by Sonny Cher on 30 May 11 no follow-up yet
dr sullivan

Dark Chocolate For Weight Loss - 0 views

When individuals commit to slim down, the last item they suppose they will relish is chocolate. However, the chocolate that folks will eat isn't the one found in candy bars, however rather chocolat...

Chocolate For Weight Loss Dark blog health mental-health brain science

started by dr sullivan on 31 Dec 14 no follow-up yet
lina001

Daily Healthy Life Style - - 0 views

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    Best Health Tips and guideline for men and women....
Hypnosis Training Academy

Hypnosis Guide: What is Trance and How to Induce it? - 0 views

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    We're in the trance state so often that it doesn't show up in the brain as anything unusual. It's an experience that occurs in everyone on a regular basis. However, very few of us know when we are in trance and what this really is. This in-depth hypnosis guide answers the common question "what is trance?" and explains how to induce it. It also explains the 7 trance signs to show that it's happening.
Tero Toivanen

Cognitive Daily: A quick eye-exercise can improve your performance on memory tests (but... - 1 views

  • If you're taking a test of rote memorization, like words from a list, move your eyes from side to side for about 30 seconds before you start.
  • It may be that this quick activity helps facilitate interaction between the brain hemispheres.
  • any activity that encourages communication between the hemispheres is likely to increase recall.
  • ...6 more annotations...
  • people who have poorer interactions between the hemispheres should benefit more than others. Who has less interactions between hemispheres? People who are strongly right-handed.
  • Strongly right-handed students remembered significantly more words if they moved their eyes compared to keeping their eyes still. Non-strongly-right-handed students (including left-handers) remembered the same number of words regardless of whether they moved their eyes before the test.
  • strongly right-handed students had significantly fewer false alarms after they moved their eyes back and forth. But for non-strongly-right-handed people, the reverse occurred; moving their eyes caused them to falsely remember more words. So overall, while the eye-saccade exercise helped right-handers, for lefties and for those who didn't have a strongly dominant hand, the exercise actually harmed their performance.
  • You might think that only side-to-side movement would improve performance, but Lyle's team found that moving your eyes up and down caused the same effect.
  • researchers say that other studies have shown that any eye movements increase bilateral activity in the frontal eye field, so it's still possible that hemispheric connectivity can explain the improved performance after eye movements.
  • So why doesn't the exercise work the same way for left-handers? Left handers (and ambidextrous individuals) already have a high level of hemispheric connectivity. Lyle's team speculates that there might be such a thing as too much connectivity, which results in a decrease in performance.
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