PSYC 355 Lecture Notes - Lecture 9: Kinji Imanishi, Japanese Macaque, Sweet Potato

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LECTURE 9 (Week 10): Social Learning 2
Lecture Outline
Matters arising from the lab session
Upcoming lab sessions
1. Animal Cultures? The early years
2. Animal Cultures? Late ‘90s, Early ‘00s
3. Socially-transmitted traditions
4. Ratchet Effects & Cumulative Culture
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1. Animal Cultures? The early years: Japanese Primatology
Native monkey species: Japanese Macaque (Snow Monkey)
A. Techniques and Theories:
Techniques: provisioning, naming
o Provisioning
Getting artificial behavior
o Naming
Leads to subjectivity; giving them personalities moving away
from objectivity
Theories: less “dualism”
B. Kinji Imanishi
If individuals learn from one another, the group’s behaviour might start to become
different from other groups, creating a characteristic culture. (not a direct quote!)
Talking about culture when other scientists were not
Root of culture
o Group learning leading to difference between other groups
C. Koshima Island, Sweet potato washing
Took potato and washed it in the water then ate it
o Juvenile female macaque (Imo)
Realized that other members of the group engaged in the same behavior
o Spread to Imo’s playmate then spread to others
Spread of behavior was slow in the beginning
o Perhaps because she came from a “low-statue” family; juvenile
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