Wednesday, April 28, 2010
Final Exam
2. List and explain 10 historical contributions to the rise of the cognitive revolution.
3. What is the IAT and hoe does it relate to Gladwell's theory in "Blink"?
4. What has been Pinker's contribution to cognitive psychology?
5. How do blind and sighted children differ in their spatial navigation?
6. Select and describe a Flashbulb memory study read in class. Make sure to explain the significance.
7. In the film "Secrets of the Mind" name and explain the 4 main phenomena. What was Dr. Ramachandran's explanation of each? What evidence did he provide?
Saturday, April 24, 2010
Studying Tactics and Metacognition
Alright so I know that all of that sounds a little intense.. and you might find yourself thinking why bother? But I sat for a moment and tried to figure out how I learned to study ... and I sincerely wasn't sure how I had figured out how to make flash cards or create word tricks to remember an equation. I think it was my mom who taught me, but I wonder if that should be a part of a grammar or middle school students curriculum because it is possible that every teacher assumes that every other teacher has already taught such a basic and necessary skill.
go here
Thursday, April 22, 2010
inattentional blindness and gorillas
What we see and what we perceive are two very different things. The richness of our visual perception does not translate over to memory recall of an event. Inattentional Blindness is a phenomena where one will witness an even overtime and something odd will happen, but the viewer more often then not will fail to recall the odd event in the series of said events.
In a study done by Daniel Simons and Christopher Chabris participants observed a video of teams of players passing a ball for a duration a little longer than a minute. During the video two unexpected events occur, a woman with an umbrella walks across the screen and the second being a woman dressed in a full gorilla suit walks across the screen. There were two showings, one where the people involved were all semi translucent and another opaque. The results were not what you might expect. Very few observers recalled either of the odd events, including the gorilla suited woman!
This is amazing to be how the memory works, how little we actually take in. But what I wonder is what differentiates the people who did notice the unexpected events vs those who did not? Are more observant people more likely to be smarter, more creative, more insightful?
Tuesday, April 20, 2010
Stroke Damage May Help Smokers Kick the Habit
The title of this article struck my interest because naturally, the truth of it is questionable. Could brain damage - an obvious negative thing to happen to someone - actually accidentally cause a positive effect ? However, it does make sense that you can accidentally kick an addiction as a result of damaging the part of the brain that craves addiction - the insula. Studies having to do with cognition, memory and motion were conducted on 69 previously smoking addicts that have had a stroke. Out f this, 19 of these patients underwent damage to their right or left insula. 12 of out these 19 patients claim their smoking urge has ended with no relapse. Although this is shoking, not everyone who underwent damage to their insula lost the urge. Furthermore, patients who underwent damage in places BESIDES their insula claim to have kicked the urge after their stroke. The differences in male and female also may influence this considering the brain of a female is wired than that of a male. Insula is still thought to be the influence on why some patients kicked the addiction. With this, possible conclusions can be made that damage to the insula may effect other addiction such as alcoholism or various different drug abuse. This theory allows therapists to come up with possible ways to help people kick a smoking addiction.
Overall I thought this was a pretty good article, although i'd like to know more about the studies that were conducted, this is definitely an interesting topic. It's ironic too, that there can be such a positive life-saving result of damaging your brain. I wonder, do people want to try and cause damage to their insula just so they can rid of an addiction ? Are doctors or therapists now going to start performing procedures or come up with ways to damage the insula in people suffering addictions ? I have mixed feelings about this. Yes, of course conquering an addiction is a good thing, but is it really a conquer if it's done this way ? Damaging your insula won't give a patient the self-satisfaction and pride one gets when they conquer an addiction on their own. It's almost like someone conquering the addiction for you, and there will be nothing cognitively involved for the patient to recall. You won't be able to mentally reflect on your success and have that reminder to stay strong for the future. It's almost the same thing as taking a pill for a quick fix so you don't need to deal with going through the steps of a recovery. Even though mentally you won't want a cigarette, there is still the physical habits that you need to get over, the cigarette breaks you used to take, and i feel like struggling to not take that cigarette break is a big part of recovery and the best way to prevent a future relapse. Won't someone still feel like they miss the act of smoking, and since they have nothing to remind them that it was a struggle to quick, won't they be more-so prone to relapse ? Or feel they should smoke anyway because that's what they're used to ? I think especially with something like smoking, recovery should be handled by making the person undergo a recovery journey. There is always a deep seeded reason behind every addiction, and a painful issue that causes a person to utilize whatever addiction they have. Therefore, I think these issues need to be dealt with and confronted, not just pushed away and masked, or else the person is just going to find something else to lash out on and of course still struggle with their internal pain. If they don't fix the issue behind the smoking, and their insula is damaged to stop smoking, naturally they may use a different substance to release their inner pain and it may be to use a drug way worse than cigarettes. Also, I think they may be prone to things such as depression and anxiety because they didn't recover by putting in hard work, they just had someone else deal with it for them. Overall I don't see how this would be a good thing to do, because I myself know how important it is to undergo a struggle or pain of some sort in order to come out on top in the end and never look back. However I would like to see if this theory gets further explored and utilized.
http://www.scientificamerican.com/article.cfm?id=stroke-damage-may-help-sm
Creativity
Schizophrenia and Temporal Lobe Epilepsy
Monday, April 19, 2010
Blindsight
Blindsight is defined as the ability to respond to visual inputs while lacking the consciousness of having seen them, meaning one can detect an object, but is unaware of the object. So how is this possible? Something doesn't seem right here.
People who are blindsighted seem to claim that they see nothing. They are unable to react to stimuli quickly, cannot decide if the stimuli is present or not, and cannot tell what the object looks like. Though, they are able to correctly answer questions when asked about objects. Studies show that blindsighted people can guess reliably to objects that share certain features like movement, location, and direction of a given stimuli. They can also determine simple forms and still do show some sort of visual capacity (reflexes: pupil reacts to light changes). But are simply unconscious to the object itself. These people are known to suffer from cortical blindness, in which a person's brain receives sensory information but cannot process it correctly due to damage in the brain. The damage in blindsight patients usually show in the striate cortex, which is also the primary locus of visual processing. Destruction or any disconnection of the striate cortext produces a scotoma, a region of blindness, in part of the visual field that maps damaged area of the cortex. Thus, the sensory input to the striate cortex is unable to process the stimuli, leading the person unable to recognize the seen object.
But how can one know something about the stimulus he/she did not see? Studies have shown that neural pathways outside of the striate cortext can mediate voluntary responses about stimuli presented in the scotoma. The superior colliculus, the lateral geniculate nucleus, and the pulvinar and extrastriate visual cortext all seem to play important roles in the "seeing" aspect of blindsight. Studies of single neurons in extrastriate areas show that some neurons are activated by stimuli in the scotoma and that these neurons respond to motion and visual pattern recognition. When a lesion of the striate cortex occurs, many of the neurons are spared from damage or degeneration and thus, can be responsible for the ability to answer questions about stimuli in the scotoma.
There are other possibilities to explain this phonemenon as well. Some say that there is a conscious awareness of visual stimuli mediated by parts of the cortical and subcortical areas in the visual system that are not damaged from striate cortex lesions. These pathways can receive information from a direct pathway from the retina even when the striate cortex is damaged. Thus, theories have claimed that visual consciousness is somehow within the striate cortex. Another theory says that there are different parts of the brain that cater to consciousness, and maybe the striate cortex is just part of the parthway to pass information through. There are more theories explaining this phenomenon, but what I can see from this research is that, one needs to take into account many different sources of information to completely understand what is really going on in the striate cortex and in the brain entirely - these are all mini steps to understanding the bigger picture of consciousness.
link
Sunday, April 18, 2010
Dostoyevsky and Epilepsy
DAVID LYNCH, consciousness and creativity
Tuesday, April 13, 2010
Seizures
cognitive tests and driving
link here
Sunday, April 11, 2010
brainstorming may discourage creativity
Article:
http://www.psychologytoday.com/blog/wired-success/201003/brainstorming-may-discourage-creativity
Tuesday, April 06, 2010
defining creativity
One would think the idea of creativity is simple enough, but when we really look at it what is creativity? Is it a thought? a final product? Is it creativity or just expertise? Creativity is a process.
It all depends on how we view the world and our expericences. Is there a point at which computers will be capable of creativity? Possibly. There are programs out there that can create symphonies based on famous composers, determining their style. So maybe creativity is not even limited to humans any longer. Or maybe it can only be creative out of a living creature's head.
Emotional IQ
FUN INTELLIGENCE FACTS!
Since I am presenting on Intelligence this week, I wanted to include some additional interesting facts that I picked up from Richard Nisbett's, Intelligence and How To Get It: Why School and Cultures Count.
FUN FACTS::
-Even use of less than two ounces of alcohol by pregnant women has a negative effect on IQ.
-The professional parent speaks about 2,000 words per hour to the child, whereas the working-class parent speaks about 1,300. By the age of three , the child in the professional family has heard about 20 million words, and the child in the working class family has heard about 20 million.
-Studies have been taken to show that blacks have smaller brains then whites. Albert Einstein’s brain was decidedly smaller, at 1,230 grams, than the overall average found for blacks in studies by Rushton. So this proves no correlation between brain size and overall intelligence.
-Baby Einstien educational toys that move around and communicate with children may be as likely to induce passivity as to encourage exploration. There is no evidence that playing Mozart to your child—whether born or not—will increase intelligence. But research suggests that extra stimulation in the early years results in more growth of neurons and better problem solving ability.
-Women who exercise regularly while pregnant will have babies with larger brains that are more intelligent on average.
-You can start exercise in your sixties and reduce the likelihood of Alzheimer’s by half.
-It is a bad idea to praise children for being intelligent. Instead, praise hard work, which is under their direct control.
creativity is unpredictability
Article here
Creative
1 : marked by the ability or power to create : given to creating
2 : having the quality of something created rather than imitated : imaginative
3 : managed so as to get around legal or conventional limits