BASC_201_-_Lecture_17_(Mar_11_-_Prof._Lefebvre)

BASC_201_-_Lecture_17_(Mar_11_-_Prof._Lefebvre) - 8 17...

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Tuesday, March 11, 2008 (BASC 201: Lecture 17) Prof. Lefebvre 8 MARCH 11, 2008 – Prof. Lefebvre 17
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Tuesday, March 11, 2008 (BASC 201: Lecture 17) Prof. Lefebvre Intelligence 1 Depending on how we define intelligence, any animal could be intelligent We could have evolved down the raven line and became super ravens and think of our selves as intelligent and the lowly apes as non-intelligent Brain has something to do with intelligence just like wings has something to do with flying and gut has something to do with digestion. But big gutted people don’t tell small gutted people that they do not have the same privileges, however we have big brained people telling smaller brained people that they can’t do certain things. Did intelligence evolve only in the hominid line? NO Marmoset vs. chimp (more intelligent) River dolphin vs. killer whale Quail vs. crow Simple life style (ie. Filter feed, passive movement, generalized feeding) vs. complex life style (specialized feeding, complex voluntary movement, predation) If not, are there converegen pressures on its evolution in different lineages? Yes Diet and society. Diet: the larger the brain, the higher up in the food chain the animal is. Sociality: animals that live in larger groups have larger cortex's. How can we test for intelligence in non-humans? Captive test and frequency counts in the wild First video: Captive test: bird trying to get to food that’s inside the transparent glass case – it needed to figure out how to open the box. This could be a poor way to test for intelligence because there’s stress during the captive test, and the organism’s intelligence could be skewed since the capability to work well under stress is also a variable. Second video: crow fishing with bread. Tool using (bait fishing) and innovative ( crows don’t usually do this). Tool use and innovation are 2 criteria for intelligence. Did intelligence co-evolve with the size (or other features) of the brain? YES Size of HV (mesopallium in bird) directly proportional to innovation rate(quail crows/jays (most innovative)) Size of cortext in primates is directly proportional to their innovation rate. (marmoset chimps (most innovative))
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Tuesday, March 11, 2008 (BASC 201: Lecture 17) Prof. Lefebvre Is intelligence a general process or a set of modules? BOTH If intelligence was a general process, different tests of intellectual behaviour would yield the same results (ie. If one is good at one thing, one is good at everything). positive relationship (slope) If intelligence was modular, one would be amazing at one thing but can botch another. negative relationship (slope) It’s actually both. Does divergence in the brains and intelligence in animals have any lessons for human policies? NO Christian party’s data: SAT/GRE scores has extremely tight correlation with the racial group and gender group of the test taker. Male Asian is better than female African, since brain size affects one’s
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This note was uploaded on 04/29/2008 for the course BASC 201 taught by Professor Lefebvre during the Winter '08 term at McGill.

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BASC_201_-_Lecture_17_(Mar_11_-_Prof._Lefebvre) - 8 17...

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