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If you've ever forgotten a word just as you were about to say it, you've experienced the Tip-of-the-Tounge phenomenon. Tip-of-the-tongue phenomenon is the subjective feeling that people have of being confident that they know the target word for which they are searching, yet they cannot recall this word. Tip-of-the-tongue phenomenon is one kind of metacognition (meaning you are aware of you're cognitive processes), that involves a feeling of knowing the word you're searching for. This phenomenon appear to occur when one is having a breakdown in the intermediate stage of lexical retrieval.

Prof. Bennett Schwartz: "In a tip-of-the-tongue state a part of our cognitive system called metacognition lets us know that even though we can't retrieve something at the moment it's probably there stored on our memory, and if we work at it we'll get it... the conventional idea is sort of like your brain's, like, a big complicated filing cabinet. This is telling us that that's not so true. You can't just go to the J file and find John there."

"The findings are necessarily limited, but do suggest that retrieval practice, as the essay-writing was called, is a powerful learning tool."

When people talk about positive and negative emotions they often use spatial metaphors. A happy person is on top of the world, but a sad person is down in the dumps. Some researchers believe these metaphors are a clue to the way people understand emotions: not only do we use spatial words to talk about emotional states, we also use spatial concepts to think about them. Researchers Daniel Casasanto (MPI and Donders Institute, Nijmegen) and Katinka Dijkstra (Erasmus University, Rotterdam) ran 2 experiments. In the first experiment, students had to move glass marbles upward or downward into one of two cardboard boxes, with both hands simultaneously, timed by a metronome. Meanwhile, they had to recount autobiographical memories with either positive or negative emotional valence, like "Tell me about a time when you felt proud of yourself', or 'a time when you felt ashamed of yourself.' Moving marbles upward caused participants to remember more positive life experiences, and moving them downward to remember more negative experiences. Memory retrieval was most efficient when participants' motions matched the spatial directions that metaphors in language associate with positive and negative emotions. The second experiment tested whether seemingly meaningless motor actions, e.g. moving marbles up or down, could influence the content of people's memories. Participants were given neutral-valence prompts, like "Tell me about something that happened during high school," so they could choose to retell something happy or sad. Their choices were determined, in part, by the direction in which they were assigned to move marbles. Moving marbles upward encouraged students to recount positive high school experiences like "winning an award," but moving them downward to recall negative experiences like "failing a test." "These data suggest that spatial metaphors for emotion aren't just in language," Casasanto says, "linguistic metaphors correspond to mental metaphors, and activati

Wanda Wallace, in a study reported in the November 1994 _Journal of Experimental Psychology_, noted that the melody of a song, in some situations, can facilitate learning and recall. The experiments in this article demonstrate that text is better recalled when it is heard as a song rather than as speech, provided the music repeats so that it is easily learned. Furthermore, the experiments indicate that the melody contributes more than just rhythmic information. Music is a rich structure that chunks words and phrases, identifies line lengths, identifies stress patterns, and adds emphasis as well as focuses listeners on surface characteristics. The musical structure can assist in learning, in retrieving, and if necessary, in reconstructing a text.

"I described my "Perjury" problem - I was interested in the subject and engrossed in the book for days, but now remember nothing about it - and asked her if reading it had ultimately had any effect on me. "I totally believe that you are a different person for having read that book," Wolf replied. "I say that as a neuroscientist and an old literature major." She went on to describe how reading creates pathways in the brain, strengthening different mental processes. Then she talked about content. "There is a difference," she said, "between immediate recall of facts and an ability to recall a gestalt of knowledge. We can't retrieve the specifics, but to adapt a phrase of William James's, there is a wraith of memory. The information you get from a book is stored in networks. We have an extraordinary capacity for storage, and much more is there than you realize. It is in some way working on you even though you aren't thinking about it.""

Love it! People keep mentioning "Proust and the Squid" to me, and it's high time I read it.

The Spelling Society speculates that English may just be the world's most irregularly spelled language. Masha Bell, the vice chair of the English Spelling Society and author of the book Understanding English Spelling, analyzed the 7,000 most common English words and found that 60 percent of them had one or more unpredictably used letters. As there's no systematic way to learn to read or write modern English-people have to memorize the spelling of thousands of individual words, file them away in their mental databases, and retrieve them when needed--English-speaking children typically needed about three years to master the basics of reading and writing, whereas their counterparts in most European countries needed a year or less. Moreover, English-speaking children then spend years progressing through different reading levels and mastering the spelling of more and more words. That means it typically takes English-speaking children at least 10 years to become moderately proficient spellers-memorizing about 400 new words per year-and because they forget and have to revise many of the spellings they've previously learned, "learning to spell is a never-ending chore."

Daniel T. Willingham, a professor of psychology at the University of Virginia, notes that while Google is good at finding information, the brain beats it in two essential ways. 1. Context: Champions of Google underestimate how much the meaning of words and sentences changes with context. With the right knowledge in memory, your brain deftly puts words in context. 2. Speed Quick access is supposed to be a great advantage of using the internet. Students have always been able to look up the quadratic equation rather than memorize it, but opening a new browser tab takes moments, not the minutes required to locate the right page in the right book. Yet "moments" is still much slower than the brain operates. That's why the National Mathematics Advisory Panel listed "quick and effortless recall of facts" as one essential of math education. Speed matters for reading, too. Researchers report that readers need to know at least 95 percent of the words in a text for comfortable absorption. Pausing to find a word definition is disruptive. Good readers have reliable, speedy connections among the brain representations of spelling, sound and meaning. Speed matters because it allows other important work - for example, puzzling out the meaning of phrases - to proceed. Using knowledge in the head is also self-sustaining, whereas using knowledge from the internet is not. Every time you retrieve information from memory, it becomes a bit easier to find it the next time.

Researchers have found that people who speak multiple languages are twice as likely to recover their mental functions after a stroke as those who speak one language. The study gathered data from 608 stroke patients in Hyderabad, India, who were assessed, among others, on attention skills and the ability to retrieve and organise information. Bilinguals and multilinguals have better cognitive reserve - an improved ability of the brain to cope with damaging influences such as stroke or dementia - due to the mental challenge of speaking multiple languages and switching between them.

Prairie dogs have different alarm calls for different predators and can also indicate the size, color, speed, etc of the predator. In fact, it was found that the animals could combine and restructure their calls to describe things they hadn't seen before. This was found by having different breeds of dog (a golden retriever, a husky, a Dalmatian, a cocker spaniel) wander through the prairie dog territory one at a time and recording the resulting alarm calls; the calls highly varied even though the 'predator' was of the same predator class. They also showed different calls when researchers wearing different colored shirts walked through the territory (the same for different heights and walking speeds).

The U.S. National Library of Medicine launched the Unified Medical Language System (UMLS) in 1984 to help computers understand biomedical meaning as well as retrieve and integrate information from various electronic sources such as patient records and biomedical literature. From the set up of parameters for vocabulary sources, to the release of the UMLS "Metathesaurus," this article takes a look at how a vocabulary database tackled the most significant barrier to the application of computers in medicine, the lack of standard language in medicine.