Showing posts with label Pleasure. Show all posts
Showing posts with label Pleasure. Show all posts

19 July 2011

Foolproof method for succeeding in modern neurochemistry

Neurochemistry Post-Docs! Looking to publish interesting and important papers on the neurochemistry of reward but don't know what to study? Then Dr. Swenson's Revolutionary Topic Selection Method is for you!

For centuries, western philosophers have thought carefully about the nature and kinds of pleasure.* You too can benefit from their efforts!

Here's the key to Dr. Swenson's Revolutionary Topic Selection Method: These philosophers have been studying mental phenomena. You study neural phenomena. And mental phenomena are ultimately neural phenomena!

Other inferior neuropsychological research programs have tried using philosophical claims to select topics. But they would have you try to prove or disprove philosophical claims with neuroscience. That may win you friends amongst philosophers. But you don't want philosopher friends!** You want prestigious publications and lucrative grants!

That's where Dr. Swenson's Revolutionary Topic Selection Method can help! You needn't worry about proving or disproving philosophical claims. With Dr. Swenson's Revolutionary Topic Selection Method, you will use writers ranging from the ancient Greeks to the modern utilitarians to help you design experimental paradigms that are the key to scientific fame.

Here's just one taste of what the system has to offer. Philosophers have, in various guises, debated whether some pleasures are better than others by virtue of being more refined and intellectually infused.

Now a lesser program might have you consider whether opera or pop music produces greater activity in dopaminergic pathways in subjects with past exposure to both. But that will impress only philosophers.

With Dr. Swenson's Revolutionary Topic Selection Method you will instead find in these disputes some promising leads for experimentation. You may, for example, design your experiments to investigate connections between the reward pathway activity, memories, and higher order processes. You don't care whether the refined music elicits more apparent reward. You care about whether pop music and opera elicit systematically different connections throughout the brain.***

Now, it is true that Dr. Swenson's Revolutionary Topic Selection Method can't promise experimental results that will woo philosophers.**** But Dr. Swenson's Revolutionary Topic Selection Method can help you select topics which will uncover processes which underlie our complex mental lives. And that's what you want.

And lucrative grants!

Act now and Dr. Swenson's Revolutionary Topic Selection Method can be yours for a pathetically small amount of money. First 10 callers get a free T-shirt and Shamwow.


*Yes, this comes dangerously close to 'since the dawn of time'. I cringe too.

**I'm serious.

***I know, music isn't the best example. But it's easy to set out. Thanks a lotOliver Sacks.

****Philosophers will nonetheless distort your results and woo themselves.


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This post was inspired by

Heterogenerity of Reward Mechanisms

SpringerLink - Neurochemical Research, Volume 35, Number 6: "The finding that many drugs that have abuse potential and other natural stimuli such as food or sexual activity cause similar chemical changes in the brain, an increase in extracellular dopamine (DA) in the shell of the nucleus accumbens (NAccS), indicated some time ago that the reward mechanism is at least very similar for all stimuli and that the mechanism is relatively simple. The presently available information shows that the mechanisms involved are more complex and have multiple elements. Multiple brain regions, multiple receptors, multiple distinct neurons, multiple transmitters, multiple transporters, circuits, peptides, proteins, metabolism of transmitters, and phosphorylation, all participate in reward mechanisms. The system is variable, is changed during development, is sex-dependent, and is influenced by genetic differences. Not all of the elements participate in the reward of all stimuli. Different set of mechanisms are involved in the reward of different drugs of abuse, yet different mechanisms in the reward of natural stimuli such as food or sexual activity; thus there are different systems that distinguish different stimuli. Separate functions of the reward system such as anticipation, evaluation, consummation and identification; all contain function-specific elements. The level of the stimulus also influences the participation of the elements of the reward system, there are possible reactions to even below threshold stimuli, and excessive stimuli can change reward to aversion involving parts of the system. Learning and memory of past reward is an important integral element of reward and addictive behavior. Many of the reward elements are altered by repeated or chronic stimuli, and chronic exposure to one drug is likely to alter the response to another stimulus. To evaluate and identify the reward stimulus thus requires heterogeneity of the reward components in the brain. "



(Via http://mindhacks.com/.)



12 November 2009

What's bad about masochistic pain?

Here's the video from the talk I gave back in April about whether masochistic pain is good:
http://www.adamswenson.net/HSG/HSG1.html
But since it's just me reading the paper aloud, you'll probably want to skip ahead and just watch the discussion:
Part 1 http://www.adamswenson.net/HSG/HSG2.html
Part 2 http://www.adamswenson.net/HSG/HSG3.html
The paper and powerpoint slides are available on the website.

Warning: This is totally unsafe for work, and most definitely not for the squeamish. The talk proper may cause mild reactions in those allergic to analytic philosophy. Such reactions are less common with the discussion alone.

02 May 2009

A Trance of Pleasure

And now for something completely different:

A Trance of Pleasure:

A 2003 study in Epilepsy and Behavior has some descriptions of the ecstatic seizures experienced by some patients with epilepsy.



They include intense erotic and spiritual experiences, feelings of become close to and blending with other people, and some sensations that couldn't be fully captured in words.



I've put some of the descriptions below because they sound absolutely wonderful:





Patient 1

The first seizure occurred during a concert when he was a teenager. He remembers perceiving short moments of an indefinable feeling. Such episodes recurred and a few months later evolved into a GTC [generalized tonic–clonic seizure]. He characterizes these sensations as ‘a trance of pleasure.’ ‘It is like an emotional wave striking me again and again. I feel compelled to obey a sort of phenomenon. These sensations are outside the spectrum of what I ever have experienced outside a seizure.’ He also describes cold shivering, increased muscle tension, and a delicious taste, and he swallows repeatedly. He enjoys the sensations and is absorbed in them in a way that he can barely hear when spoken to. When in a particular, relaxed mood, he can sometimes induce seizures by ‘opening up mentally’ and contracting muscles. He denies any religious aspects of the symptoms. ‘It’s the phenomenon, the feeling, the fit taking control.’ It lasts a few minutes and afterward he is tired with difficulties expressing himself for about 1 hour.



Patient 6

This man has a multifaceted symptomatology and a tendency to interpret bodily sensations as supernatural phenomena. Nevertheless, from the beginning of his forties, he experienced distinct, stereotypical attacks with a ‘change of concept of the surrounding world.’ He reports an ‘oscillating erotic sensation, like twinkling polar light’ in his pelvic region and down the inside of his thighs. This is described as different from sexual excitement, more like ‘an erogenous charge of the skin.’ He may also have a clairvoyant feeling of a ‘telepathic contact with a divine power.’ These sensations are of short duration and may be accompanied by faintness and followed by drowsiness. With carbamazepine treatment, the frequency of these attacks has been considerably reduced.



Patient 11

The attacks started in his first school year. The experiences are beyond what can be described in words. ‘I can sense the colours red and orange without seeing them. The feeling has an erotic aspect. It starts in the stomach and spreads upwards. It is pleasant, but not similar to ordinary joy. It is like an explosion.’ In the close presence of another person, he can feel a sort of peculiar unification. An intense déjà vu sensation, a queer taste, and ‘gooseflesh’ are also components of the seizures. As a child he was surprised that his friends denied having similar feelings, and he learned to keep them to himself. Sometimes these attacks evolved into CPSs with reduced consciousness and complex automatisms and afterward he had transient difficulties speaking. Before the diagnosis of epilepsy was made in his late teens, he was referred to a psychiatrist. A right-sided temporal lobe calcification was diagnosed by computed tomography at about 30 years, but he refused surgery. At 42, an expansion in the same region was found by MRI, and he was operated for an anaplastic oligodendroglioma. He was seizure-free for 6 years until recurrence of the tumor.



One of the striking things about epilepsy is how different each person's experience of having a seizure can be.



While it is stereotypically assumed to be a negative experience, some aspects can be remarkably beautiful.



The Russian author Dostoyevsky famously said of his epilepsy 'I would experience such joy as would be inconceivable in ordinary life - such joy that no one else could have any notion of. I would feel the most complete harmony in myself and in the whole world and this feeling was so strong and sweet that for a few seconds of such bliss I would give ten or more years of my life, even my whole life perhaps.'



There are several more case descriptions in the article, all of which have some aspect which touch at least the edge of ecstasy, if not the very heart of the experience.





Link to article.

Link to PubMed entry for same.

"



(Via Mind Hacks.)