cognitive fun!

Learn your mind. Play it too.
good cook
medicalstudent | 3 years ago Reply Link me
good cook
Psychol Aging. 2009 Mar;24(1):63-74.
Age differences in the effects of domain knowledge on reading efficiency.
Soederberg Miller LM.

Department of Human and Community Development, University of California, Davis.

In the present study, the author investigated age differences in the effects of knowledge on the efficiency with which information is processed while reading. Individuals between 18 and 85 years of age, with varying levels of cooking knowledge, read and recalled a series of short passages within the domain of cooking. Reading efficiency was operationalized as time spent reading divided by the amount recalled for each passage. Results showed that reading efficiency increased with increasing levels of knowledge among older but not younger adults. Similarly, those with smaller working memory capacities showed increasing efficiency with increasing knowledge. These findings suggest that knowledge promotes a more efficient allocation policy that is particularly helpful in later life, perhaps due to age-related declines in working memory capacity. (PsycINFO Database Record (c) 2009 APA, all rights reserved).

crystallized intelligence modulates executive functioning and thereby compensates for (-)wmc in older persons

wonder why younger people didn't experience the same...

plasticity versus determinism?

determinism should predispose to a certain pattern of salience attributions
medicalstudent | 3 years ago Reply
lol
? | 1 year ago Reply
I think this is the same phenomenon as playing DNB with sounds that you don't know or that mean nothing (harder) opposed to playing DNB with english letters (easier). memorizing something you understand (and for which you have symbols/mental representations) is of course easier than memorizing a list of meaningless noises or sounds that you have a hard time discerning.

that's why I don't score as high with the DNB games on this site (german alphabet and speed run) as with the "soak your head" version of the game (with english letters).
after a while though, with training, I guess you can come to recognize very well even the most random noises. most of the improvement I made on this site is 'learning to recognize' the german letters or the sounds in the DNB speed run. but I still score higher on the soak your head site. anyone played on both sites?

anyone knows if it's better for wm training to train with unknown noises or with english letters? I assumed it would be better to train with unknown noises, but maybe not afterall.
? | 3 years ago Reply
You and I could have made the same post. I recommend brainworkshop's implementation that you can download at brainworkshop.sourceforge.net

The best method I've used so far is Triple N-Back. If you take into account the total items you must remember at any n level (n*3) and note your progress at a dual n-back task (n*2), then more often then not you will likely see n*2=n*3. So if you work up to triple 6-back, you'll likely jump from double 6-back to double 8-back very quickly. Logically, the number of items you can learn to manipulate in WM will be greater with triple n-back as opposed to double.

I would like to see a quadruple (and higher!) n-back at some point. When we develop the task to exceed any given life-situation, I suspect the gains will be remarkably noticeable.
? | 3 years ago Reply
http://dx.doi.org/10.1371/journal.pcbi.1000314

"We conclude that human brain functional networks demonstrate critical dynamics in all frequency intervals, a phenomenon we have described as broadband criticality."

potential hypothesis... age negatively correlated with self-organized criticality measure? i.e., positive correlation until late 20s, and negative after?
? | 3 years ago Reply
Anecdotal post (make more personal):

See this all the time. Each time I try talking to my grandparents turns out to be quite the dead end. E.g., my grandmother had never heard of the knowledge of ultimate things and equated that with living a life "in doors" without any desire "to see the world outside" or a "sense of adventure", and when I complained she likely didn't have a philosophical mind to understand, she retorted with how glad she was that may be the case. Many other such cases have crossed my path with other aged figures.

Their brains are more or less frozen, trapped in the past.

Youth is like water, ever flowing and changing and finding paths to the hidden areas of life in the future.

I'm biased toward the latter and hope to preserve it for my entire life.
argumzio | 3 years ago Reply
Youth is like water, ever flowing and changing and finding paths to the hidden areas of life in the future.

Ha! cool metaphor for the effect of fluid intelligence on behavior and personality. I'd like to read more about the influence of different brain modules/ mental organs and their influence on personality, and even on society and 'everyday life', especially during prehistoric times---if anyone has good links/books to suggest. (All I know for now is that the human brain could have been designed especially to (among other things) maximize cultural transmission and conservation. we humans have a marked tendency to imitate rather than think new problems by ourselves, even compared to chimps apparently: http://www.youtube.com/watch?v=pIAoJsS9Ix8 that's very much linked to the theory of the human brain as a 'meme machine' from Susan Blackmore.)

I wonder if somehow the elderly being more 'rigid' and therefore conservative could have been an evolutionary advantage for prehistoric human societies. when growing older, all the memories and rules you learned in your life become rigid. maybe you thus become a positive influence on your peers, and you help keeping society orderly and safe. I mean it's usually old people who insist on adopting and observing rules. whereas children are cognitively designed to explore (even if the previous link doesn't show that very much), and they (from what I've read) gradually lose that ability to explore / "find new paths". Adults rather follow rules than explore, after a certain point it seems. I remember adults also also become less extroverted in personality trait, which might be a consequence of becoming more 'boring' 'rule-oriented' less explorative. but all this certainly is the effect of much more than just losing some Gf.

actually, I think that becoming conservative and 'rule-oriented' might just be a consequence of experience (having deduced rules), and not necessarily of having an impaired Gf at all. becoming adult and more rule-oriented/less extroverted/less explorative probably relies on other mechanisms than impairing Gf or working memory. Besides that, we can see that following rules is also very developed even in kids (first link).
Having an impaired Gf probably isn't useful at all, or doesn't serve any purpose, even from an evolutionary point of view. I think it's simply an evolutionary neglect that's what people say usually, and it makes sense. (that's a well known rule that I should have followed instead of thinking the question by myself).

But anyhow, it’s interesting to think of Gf as a "meme/rule 'R 2/personality types/aptitudes and correlation to brain modules; and 3/"brain implants/improvements") but I don't know who does that kind of subject. it's probably controversial. anyone knows? Links/names/books/comments/emails welcome.
smoothboom | 3 years ago Reply
end of comment:
But anyhow, it’s interesting to think of Gf as a "meme/rule 'R 2/personality types/aptitudes and correlation to brain modules; and 3/"brain implants/improvements") but I don't know who does that kind of subject. it's probably controversial. anyone knows? Links/names/books/comments/emails welcome.
smoothboom | 3 years ago Reply
end of comment:
But anyhow, it’s interesting to think of Gf as a "meme/rule 'R and D'" subsystem and and Gc (and language) as a "meme/rule 'transmission/conservation'" subsystem. I think more and more that “meme” is a very useful concept for understanding the human brain and how it evolved, how it works and why it's designed as it is.

So afterall I think it'd be just better if everyone could keep its Gf intact (and eventually improve it). I think it would make a much better world, overall? no? anyone agree with that? does anyone see any bad consequences of too many ppl having too great of a Gf? should we all get brain implants or play DNB 10 times a day?

btw if you'd like to keep your Gf and youth intact, all your life, I saw that page yesterday:
http://www.mfoundation.org/index.php?pagename=mf_300_declaration

sry for the long comment but any response is very welcome. I'd like to study that (anything related to 1/"brain evolution"; 2/personality types/aptitudes and correlation to brain modules; and 3/"brain implants/improvements") but I don't know who does that kind of subject. it's probably controversial. anyone knows? Links/names/books/comments/emails welcome.
smoothboom | 3 years ago Reply
she must be a good cook .
hope | 3 years ago Reply
how's her cooking?
? | 3 years ago Reply
Not very grand....

Worse is always possible, of course.
argumzio | 3 years ago Reply
ha ha

better always possible

optimism breeds confidence.
medicalstudent | 3 years ago Reply
Yes, mutatis mutandis, better is always possible as well. But reality--life in general--has a way of undermining all panglossian approaches.

Maybe I've been skipping out on my 10hr sleep requisite for too long.... My n-back performance has gotten worse lately. Sigh.
? | 3 years ago Reply
ten hours, fuck me
? | 3 years ago Reply
who would want to?
? | 3 years ago Reply
Yeah... Forgot to sign in. The above ? is me.
argumzio | 3 years ago Reply
Sorry for the threadjacking, but ...
Do you follow any method in choosing different configurations of multimodal n-back?
bloch | 3 years ago Reply
only to get better at what i'm not good at

no real method
medicalstudent | 3 years ago Reply
Thank you.
bloch | 3 years ago Reply

Login to save scores

© 2008-2009 cognitivefun.net | about | widgets | blog | cognitive neuroscience for everyone