Archive for March, 2009

Face recognition: the eyes have it

Tuesday, March 31st, 2009
pa href="http://feedads.googleadservices.com/~a/V6LvF02dbW93PwtFsMtP2aYqXq4/a"img src="http://feedads.googleadservices.com/~a/V6LvF02dbW93PwtFsMtP2aYqXq4/i" border="0" ismap="true"/img/a/pOur brain extracts important information for face recognition principally from the eyes, and secondly from the mouth and nose, according to a new study from a researcher at the University of Barcelona. This result, published March 27 in the open-access journal PLoS Computational Biology, was obtained by analyzing several hundred face images in a way similar to that of the brain.img src="http://feeds2.feedburner.com/~r/BrainMysteries/~4/RGlOw6dj8jw" height="1" width="1"/

Action video games improve vision

Tuesday, March 31st, 2009
pa href="http://feedads.googleadservices.com/~a/nAw_-eyfsRu_Z2xkZrhJ4PJm8pY/a"img src="http://feedads.googleadservices.com/~a/nAw_-eyfsRu_Z2xkZrhJ4PJm8pY/i" border="0" ismap="true"/img/a/pAbility to perceive changes in shades of gray improves up to 58 percentimg src="http://feeds2.feedburner.com/~r/BrainMysteries/~4/7B_q3HIdrvo" height="1" width="1"/

Vindictiveness doesn’t pay

Monday, March 30th, 2009
pa href="http://feedads.googleadservices.com/~a/esJ4yqoKqjxObxNZL76vOJMppk8/a"img src="http://feedads.googleadservices.com/~a/esJ4yqoKqjxObxNZL76vOJMppk8/i" border="0" ismap="true"/img/a/pStudy shows: The guiding motto of 'an eye for an eye, and a tooth for a tooth' brings neither success nor happinessimg src="http://feeds2.feedburner.com/~r/BrainMysteries/~4/_SOTePbMf0I" height="1" width="1"/

Study shows brain activity associated with phantom limbs

Monday, March 30th, 2009
pa href="http://feedads.googleadservices.com/~a/FXAdeOb4K0ZxbrGE5IDXpLxc15U/a"img src="http://feedads.googleadservices.com/~a/FXAdeOb4K0ZxbrGE5IDXpLxc15U/i" border="0" ismap="true"/img/a/pPatients have reported seeing their phantom limb or feeling objects or body parts with itimg src="http://feeds2.feedburner.com/~r/BrainMysteries/~4/19SEA4X6Qdw" height="1" width="1"/

When it comes to intelligence, size matters

Sunday, March 29th, 2009
pa href="http://feedads.googleadservices.com/~a/5FSmHaOt7VKFpiQn3BjV32eJ18s/a"img src="http://feedads.googleadservices.com/~a/5FSmHaOt7VKFpiQn3BjV32eJ18s/i" border="0" ismap="true"/img/a/pA collaborative study led by researchers at the Montreal Neurological Institute, McGill University has demonstrated a positive link between cognitive ability and cortical thickness in the brains of healthy six- to 18-year-olds. The correlation is evident in regions that integrate information from different parts of the brain. The imaging study published this week in a special issue of scientific journal Intelligence is the largest and most comprehensive of its kind with a representative sample of healthy children and adolescents.img src="http://feeds2.feedburner.com/~r/BrainMysteries/~4/6KfGAI07nV4" height="1" width="1"/

Are You a Worry Wart?

Saturday, March 28th, 2009
Are you a worry wart?nbsp; I am, definitely.nbsp; I'm not proud of it, butnbsp;I have to say, Inbsp;seem to worry less as the years go by.nbsp; Maybe aging helps us tonbsp;more easily accept whatever comes along.nbsp; Maybe I have more trouble remembering what it is I was worrying about the day before.nbsp; ha!BRBRWorrying can cause us a great deal of stress, anxiety andnbsp;eventually depression.nbsp; It can wreck our relationships, interfere with our family activities and play havoc with our own mental health as well as our physical health.nbsp; Still.....many of us are worry warts.nbsp; I wonder if women are more prone to worrying than men.nbsp;nbsp; I wondernbsp;what kind of reward we are getting from spending our energy worrying.nbsp; I wonder if I'm worrying toonbsp; much about this!!!BRBRI came across a helpful and interesting article about worrying and thought I would share it with you.nbsp; It discusses managing our worrying with A href="http://psychcentral.com/lib/2009/managing-worry-action-and-distraction/" target=_blankAction and Distraction/A.nbsp;nbsp; Sounds like a pretty good idea to me. nbsp; It's been my experience that when I am busy, I am less prone to worrying.nbsp; When I'm idle or resting is the time my mind starts in again, often relentlessly.nbsp;nbsp; I'll never forget something my therapist told me years ago.nbsp; "when you're having these worrisome thoughts, change the channel, just as if it were a television set".nbsp; This advice hasnbsp;saved me many times from unnecessary stress.nbsp;nbsp; Give it a try and see if it works for you.nbsp;nbsp; nbsp;

Distinct hippocampal neurons monitor success or failure during learning task

Saturday, March 28th, 2009

Scientists have discovered that individual neurons in the monkey hippocampus can signal information about the outcome of experimental trials during an associative learning task. The research, published by Cell Press in the March 26 issue of the journal Neuron, furthers our understanding of outcome-selective cells in the primate brain and provides important insight into how information about trial outcomes may influence learning.

Visual attention: How the brain makes the most of the visible world

Friday, March 27th, 2009

The visual system has limited capacity, and cannot process everything that falls onto the retina. Instead, the brain relies on attention to bring salient details into focus and filter out background clutter. Two recent studies by researchers at the Salk Institute for Biological Studies, one study employing computational modeling techniques and the other experimental techniques, have helped to unravel the mechanisms underlying attention.

Fear or romance could make you change your mind, study finds

Thursday, March 26th, 2009

People's primal emotions alter effectiveness of persuasion tactics

Cognitive decline begins in late 20s, study suggests

Wednesday, March 25th, 2009

A new study indicates that some aspects of peoples' cognitive skills -- such as the ability to make rapid comparisons, remember unrelated information and detect relationships -- peak at about the age of 22, and then begin a slow decline starting around age 27.