Pages: [1] 2   Go Down

Author Topic: Left brain/right brain and hemispheric specialization  (Read 8765 times)

professorgb

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 55
Left brain/right brain and hemispheric specialization
« on: September 09, 2013, 11:01:11 am »

Sharon Tenenbaum's "Understanding the left and right brain" should be revised or, at least, retitled.  The neurological community does not, and never has, subscribed to the view that left and right hemispheres are associated with creativity and rational thought.  While it is true that a great degree of hemispheric specialization can be found, it is a fallacy to map bilateral motor control onto visual perception and creativity.  Motor control and cognitive/interpretive functions, while tied together to a degree, are largely separate.  Furthermore, the hemispheres of the brain are not totally separate; the corpus collosum connects them. 

The fact is that the brain doesn't simply tend to specialize hemispherically; rather, the brain tends to centralize cognitive/neurological functions to different lobes and areas of the brain. There is certainly some hemispheric specialization, but not to the degree that popular imagination would have it.  Research into specific disorders like aphasia (difficulties with language production and comprehension) and memory problems demonstrate functional centralization, rather than lateralization.

While I am all for discussions that enhance creativity and photographic insight, I strongly believe that these discussions should not perpetuate scientific and social myths.  If we couch these discussions in terms of "food for thought," rather than as scientific fact, I would have no problems.  If we use hemispheric specialization as a metaphor, a way to get photographers thinking differently, that's all to the good.  I think that the example of mirror imaging the bridge left and right works in this way.  It gets the photographer thinking about how most people would interpret an image and then gives him/her a starting point for creatively violating typical photographic perception.

A fun article regarding the left brain/right brain fallacy is http://www.psychologytoday.com/blog/brain-myths/201206/why-the-left-brain-right-brain-myth-will-probably-never-die.  While not comprehensive, it is a good introduction to this issue.
Logged

Dave Millier

  • Full Member
  • ***
  • Offline Offline
  • Posts: 146
    • Whispering Cat Photography
Re: Left brain/right brain and hemispheric specialization
« Reply #1 on: September 09, 2013, 11:30:59 am »

Absolutely. It makes me cringe when I hear "railway station book stand self help guide" myths disseminated as if they were fact. As you say, make use of these ideas as metaphor but don't (re)peddle over-simplified cultural myths as science.  The most likely explanation for left-right eyescan preferences is habit based on the reading direction of the language you use every day.
Logged
My website and photo galleries: http://w

michael

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 5084
Re: Left brain/right brain and hemispheric specialization
« Reply #2 on: September 09, 2013, 12:38:34 pm »

Why am I not surprised at this response?

Lighten up folks. This isn't a scientific journal. There is enough "folk" theorizing on this topic to at least make it something fun to read even if there is some scientific doubt as to its absolute validity.

Geeze! The Net has become such a difficult place to say anything, not matter how innocent, without self-proclaimed "authorities" jumping in to set the record straight.

Some days makes me want to just throw in the towel. >:(

M

Ps: The amount of pure bullshit and misinformation that appears here on this site's forum (and every other one as well) is astonishing. If I bothered to comment on or correct even just the most glaring examples it would be a full-time job. Instead, I just get on with my life, which I suggest others try to so as well.
Logged

petermfiore

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2705
    • Peter Fiore Fine Art
Re: Left brain/right brain and hemispheric specialization
« Reply #3 on: September 09, 2013, 12:53:25 pm »

Good one, Michael!!!!!

Peter

Isaac

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 3123
Re: Left brain/right brain and hemispheric specialization
« Reply #4 on: September 09, 2013, 12:56:27 pm »

There is enough "folk" theorizing on this topic to at least make it something fun to read even if there is some scientific doubt as to its absolute validity.

The article is there as "fun to read" and professorgb's comments are informative rather than mean-spirited -- so where's the problem?
Logged

Ray

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 10363
Re: Left brain/right brain and hemispheric specialization
« Reply #5 on: September 09, 2013, 12:58:07 pm »

In defense of the article can I offer the following.

I'll always remember a TED talk by a female neuroscientist who recounted her own experiences of her own stroke whilst it was happening.

The stroke occurred in the left side of her brain, but it wasn't a sudden and final  on/off affair. It was a gradual waxing and waning of her left brain faculties. She experienced a very vivid emotional comparison between the sensation of the two hemispheres in function, then just the right hemisphere in function as the left was gradually cut off in a waxing and waning manner.

What she reported was absolutely fascinating. As the left brain faculties diminished, she experienced a sense of euphoria, peace and tranquility. Then as the left brain temporarily resurged, the experience of peace and tranquility was destroyed.

The message I got from that TED talk, rightly or wrongly, was that our worries and fears and concerns in this world are mainly a product of left-brain activity.

I'm guessing that when Buddhist monks or Hindu sages reach their goal of Nirvana, it's a result of acheiving complete control over that left hemisphere.
Logged

Eric Kellerman

  • Full Member
  • ***
  • Offline Offline
  • Posts: 140
    • Eric Kellerman Photography
Re: Left brain/right brain and hemispheric specialization
« Reply #6 on: September 09, 2013, 01:05:12 pm »

I'm afraid that I'm with the scientists here too, as I'm a psycholinguist by training and the question of hemispheric specialisation and language has been much discussed in language pathology and first and second language acquisition. Too much cod science for me on a photography site, I'm afraid. There is, however, something that needs explaining in the preferential bias for the first photo. An eye-tracking study might prove interesting.

A dentist friend of mine once presented a paper at a conference where he and his colleagues showed that while western dentists scanned dental x-rays from left to right, Japanese dentists did so from top to bottom, right to left, reflecting the classic directions of western and Japanese writing systems, respectively.
Logged

Eric Myrvaagnes

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 22812
  • http://myrvaagnes.com
    • http://myrvaagnes.com
Re: Left brain/right brain and hemispheric specialization
« Reply #7 on: September 09, 2013, 01:09:32 pm »

The Bible (or Torah or Koran or whatever book you might consider sacred) is pretty useless as factual history but extremely valuable as a collection of useful metaphors.
The left-brain-right-brain idea is also a very useful metaphor for creativity, but I couldn't care less about whether it is anatomically correct.
Logged
-Eric Myrvaagnes (visit my website: http://myrvaagnes.com)

hokuahi

  • Full Member
  • ***
  • Offline Offline
  • Posts: 146
  • Artist, Photographer
    • Exhibition
Re: Left brain/right brain and hemispheric specialization
« Reply #8 on: September 09, 2013, 01:29:13 pm »

Thank you for your comment Michael... I've been visiting this site almost daily for several years... More and more I am finding less and less I can use, and that is interesting, that actually applies to photography. I could care less whether the latest whistleblower is a hero or not or any of the other myriad discussions that have nothing to do with photography.

End of my one and only rant.
Logged

Iluvmycam

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 533
Re: Left brain/right brain and hemispheric specialization
« Reply #9 on: September 09, 2013, 01:32:49 pm »

OP...dodn't know?

But I will say street photogs have a different mindset than landscape LF guys.
Logged

Isaac

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 3123
Re: Left brain/right brain and hemispheric specialization
« Reply #10 on: September 09, 2013, 01:36:45 pm »

I could care less whether the latest whistleblower is a hero or not or any of the other myriad discussions that have nothing to do with photography.

I've only seen that discussion in "The Coffee Corner" and I choose to ignore that discussion -- presumably you also choose to ignore that discussion, so where's the problem?
Logged

professorgb

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 55
Re: Left brain/right brain and hemispheric specialization
« Reply #11 on: September 09, 2013, 01:45:15 pm »

I'm glad to see discussion on this issue, but I had hoped readers would see my point for what it was:  With all the amazing wealth of information out in the wide world to inform us about the production of high-quality, high-impact photography, why should we push false information in the name of "conversation"?

My point is not to irritate people.  My point is that the world is filled with enough scientific illiteracy that we don't need to spend our time spreading it any further.

Michael, I'm surprised at the vehemence of your response.  The fact is that you present tons of scientific/perceptual information on this site all the time.  Every time you discuss such issues as image sharpness in print vs. onscreen, you are implicitly discussing perceptual psychology.  Further, much of the information debated by members of this forum centers on technical issues and misinformation regarding those technical issues.  Given all this, I felt it was important to note the fallacy. That was all.

Logged

John Camp

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2171
Re: Left brain/right brain and hemispheric specialization
« Reply #12 on: September 09, 2013, 02:08:22 pm »

+1
Logged

Slobodan Blagojevic

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 18059
  • When everyone thinks the same, nobody thinks
    • My website
Re: Left brain/right brain and hemispheric specialization
« Reply #13 on: September 09, 2013, 02:37:55 pm »

... Michael, I'm surprised at the vehemence of your response...

Well, Professor, don't be.

Since you are a man of science apparently, you are familiar with Newton's law of action-reaction? Your own tone set the stage for the reaction.

You said that this site "perpetuates scientific and social myths...pushes false information" etc. You then expected a different reaction?

You linked to an article titled "Why the Left-Brain Right-Brain Myth Will Probably Never Die." You see the irony? So let me ask you this: is this site's role to set the scientific record straight and finally dispels "myths that never die"? When/if you (i.e., the scientific community) on the other hand manage to do that, so that it becomes a common knowledge, then please come back and lecture us, the few remaining backwards, into submission.

It's a metaphor, for god's sake! For the purpose of photographic discussions on this site at least.

Eric Kellerman

  • Full Member
  • ***
  • Offline Offline
  • Posts: 140
    • Eric Kellerman Photography
Re: Left brain/right brain and hemispheric specialization
« Reply #14 on: September 09, 2013, 03:01:14 pm »


It's a metaphor, for god's sake! For the purpose of photographic discussions on this site at least.


And the earth is flat. My spirit level has just proved it.
Logged

professorgb

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 55
Re: Left brain/right brain and hemispheric specialization
« Reply #15 on: September 09, 2013, 03:10:29 pm »

Your tone is the exact reason I usually don't participate in discussion forums.  I never presented myself in the superior manner you apparently see in my posts.  This will be my final post on LL, sadly.  I had thought it was different here, with professionalism in place of snarkiness.

Just for the sake of closure, though, let me try one other tact.  This site is a business.  It is in the business of selling information and inspiration, and the model to date seems to be successful.

The continued success of any business is largely dependent on (among other things) scarcity of the product being offered and, lacking scarcity, branding.  Given the uncountable number of photographic "information" web sites available on the Net, let's assume for the moment that LL is successful due to its branding.  That brand is the provision of competent, accessible, *accurate* information to its customers.  Further, the apparent clientele here is typically knowledgeable, often well-known photographers--this really enhances the LL reputation (I recommend all my clients use this site, and have purchased videos here myself).

So, why would Michael want to screw around with his branding?  Why would he want to present information that is demonstrably false (because, like it or not, left brain/right brain has been proven false, popular opinion and incidental titling of magazine articles aside)?  The site's branding rests on the reputation of its owner as an excellent, informed photographer and writer.  Why would he knowingly include false information?  When I read that article, I didn't see any place where it was presented as a metaphor; it was presented as *fact*.  By posting that article, Michael implicitly stands behind its content and its veracity.  Period.  The consequence is potential damage to his brand.

Am I making a tempest in a teacup?  Yes and no.  Yes in that this is a single article in over 7 years of my using the site that has had this problem.  Yes in that the factual errors aren't exactly egregious.  NO, however, in that Michael doesn't want this problem to become a trend.  As I said, he lives and dies by his branding.  If the trustworthiness of the information presented on LL--not the user forum, but a main entry page--declines, so does his brand.  

That's enough of that.

Well, Professor, don't be.

Since you are a man of science apparently, you are familiar with Newton's law of action-reaction? Your own tone set the stage for the reaction.

You said that this site "perpetuates scientific and social myths...pushes false information" etc. You then expected a different reaction?

You linked to an article titled "Why the Left-Brain Right-Brain Myth Will Probably Never Die." You see the irony? So let me ask you this: is this site's role to set the scientific record straight and finally dispels "myths that never die"? When/if you (i.e., the scientific community) on the other hand manage to do that, so that it becomes a common knowledge, then please come back and lecture us, the few remaining backwards, into submission.

It's a metaphor, for god's sake! For the purpose of photographic discussions on this site at least.


« Last Edit: September 09, 2013, 03:31:15 pm by professorgb »
Logged

John Camp

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2171
Re: Left brain/right brain and hemispheric specialization
« Reply #16 on: September 09, 2013, 03:33:58 pm »

Professorgb, I think you need to take an aspirin and lie down for a few minutes. As noted by my+1 a few comments up, I, and I believe several others, think you are absolutely correct. But, the fact is, Michael sometimes gets up on the wrong side of the bed, as does everyone, from time to time, and even when he's cranky, he's almost always somewhat correct. But, sometimes not, and this is one of those times in which he was inappropriately defensive. Get over it. In the meantime, I, for one, appreciate your contribution, and hope they will continue. 
Logged

Slobodan Blagojevic

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 18059
  • When everyone thinks the same, nobody thinks
    • My website
Re: Left brain/right brain and hemispheric specialization
« Reply #17 on: September 09, 2013, 03:42:04 pm »

...Michael doesn't want this problem to become a trend...

Oh, no, who would want that!?

To help Michael out of this conundrum, I suggest, effective immediately, that he forms a panel for peer-review of future articles for accuracy.

The panel must be comprised of: neurologist, chemist, biologist, physicist, physician, psychologist, psychiatrist (these would come especially handy here), mathematician, engineer, geologist, etc. Because you never know on who's toes you might step in the course of publishing an article. Given many scientific controversies, however, it would be prudent to include at least two or more representatives for each profession, carefully selected to reflect current schools of thought.
« Last Edit: September 09, 2013, 03:44:59 pm by Slobodan Blagojevic »
Logged

professorgb

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 55
Re: Left brain/right brain and hemispheric specialization
« Reply #18 on: September 09, 2013, 03:44:57 pm »

Thanks.  Actually, it wasn't Michael that bothered me--he reacted strongly, but no big deal--but others.  Nonetheless, I'll lie low for a while if not longer . . .

Professorgb, I think you need to take an aspirin and lie down for a few minutes. As noted by my+1 a few comments up, I, and I believe several others, think you are absolutely correct. But, the fact is, Michael sometimes gets up on the wrong side of the bed, as does everyone, from time to time, and even when he's cranky, he's almost always somewhat correct. But, sometimes not, and this is one of those times in which he was inappropriately defensive. Get over it. In the meantime, I, for one, appreciate your contribution, and hope they will continue. 
Logged

Isaac

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 3123
Re: Left brain/right brain and hemispheric specialization
« Reply #19 on: September 09, 2013, 03:51:46 pm »

Your tone is the exact reason I usually don't participate in discussion forums.  ... I had thought it was different here, with professionalism in place of snarkiness.

Some, of those who post here, troll for likely victims; others don't.
Logged
Pages: [1] 2   Go Up