phux0002: October 2011 Archives

The "Tip of the tongue", which is also called (TOT) phenomenon refers to the inability to pull a word from your memory despite belief that the word is there. It is a psychological state that produces pronounced and easily recognizable physiological reactions. TOT have happened all over the world, people have reported the phenomenon in the native languages of France, Portugal, Vietnamese, and Romania and also all other countries. It is also age-dependent, with seniors reporting the experience about twice as often as college age students. The person experiencing TOT can often name the first letter of the word and can recall words similar in meaning. About half the time, the individually eventually succeeds and voices the word.

The tip-of-the-tongue experience (TOT) is characterized by being able to retrieve quite a lot of information about the target word without being able to retrieve the word itself. You know the meaning of the word, you may know how many syllables the word has, or its initial sound or letter. But you can't retrieve it all. The experience is coupled with a strong feeling (this is the frustrating part) that you know the word, and that it is hovering on the edges of your thought.

It has been thought that these interfering words cause the TOT, but some researchers now believe they're a consequence rather than a cause. Because you have part of the sounds of the word you're searching for, your hard-working brain, searching for words that have those sounds, keeps coming up with the same, wrong, words. A recent study by Dr Lori James of the University of California and Dr Deborah Burke of Pomona College suggests a different cause. Interestingly, this ability to transmit phonological relatives of the word being recalled is lost in patients with Alzheimer's disease. Alzheimer's and dementia involve memory retrieval failure in specific brain areas, which may be the case with this more common phenomenon as well. In their study using functional magnetic resonance imaging, Maril and colleagues found that activity in the anterior cingulate cortex and the prefrontal cortex of the brain was higher during TOT experiences than when the subject remembered the word.

Another prediction is that as a result of this representational "tightening," subjects may be less likely to notice unexpected or infrequent events in their environment - for example, if subjects are completing the same task but are required to stomp their foot whenever a three-syllable word occurs, they may be less successful at this when engaged in a task that involves the retrieval of low-frequency or non dominant information relative to that involving more dominant or high-frequency information.

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When we talked about Twin Studies, we want to debate between the Natures vs. Nurture, I agreed with the blog from goodw140 but I would like to point out a few things that I run across and also happen in real life. I knew this couple since 1997 and they have Twins son. Right now theirs Twin Son is about 14 years old. They look exactly alike but they have a totally differences Personality, they live in the same house, have the same Parents and also eat the same food and grow up in the same environment. One is really girly, love to go to school, always take his time like a girl, and the other one is totally opposite, always dress like a "cowboy", hate to study and always naughty. They both were raised and taught the same ways by the Parents but they still turn out differences. With this Twins it is highly a Nature aspect. Could we determine whether differences in genes or differences in the environment really matter, and which one play an important roles in Twin Studies. In reality, I think with this family as Mass Ridley has put it "Genes, by themselves can't determine anything." And also environment plays only a small role in creating personality differences since they were born. Their Parent did matter, just in a way different than originally assumed. Genes matter to the extent that they support parenting in this scenario according to the blog created by Judith Rich.

Blog about Twin Studies, Genes, and Parenting

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This page is an archive of recent entries written by phux0002 in October 2011.

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