22:58 - Memory and intelligence
Hey guys,
Memory is indeed part of intelligence and necessary for it. The WAIS (a standard IQ test) has a digit span component, in which the subject must repeat back a series of digits to the test administrator. This measures short term memory (more specifically the phonological loop part of working memory). This is what most people think of as memory of course.
That said, the ability to know how to look something up, or where to look, or even what search terms to use in Google (or ask.com if you are a mom....) is also stored in memory. This is a different sort of memory, memory for facts about the world. This is called semantic memory, and is implicit (it just sort of happens, you are not aware that you are using memory). On an interesting side note, researchers have found that people with higher IQs actually show less brain activity when solving a problem than those with lower IQs. Perhaps this shows that intelligence is also about efficiency.
Dave (the psychologist) - http://reviews.cnet.com/8301-11455_7-9888687-10.html?tag=more
(Molly, I couldn't transcribe this you talk VERY fast. Glad that was in show notes.)
This could explain why (and yes I know this is a "game") on Brain Age ( www.brainage.com ) has a large memory componet to it. I only have the first one, but one of the major tests that you do repeatedly is see how many words you can remember in 2 minutes. There is also one where you are shown a starting number of people, than have to track them as some leave and enter a "house" that blacks out the number left on screen. That employes memory as well as addition and subtraction on the fly. I fell that I am in fact "smarter" doing these simple exercises.
I felt I had to mention these things after I heard the latest episode.