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Lisa Tansey

Wordle - Beautiful Word Clouds - 0 views

www.wordle.net

tag cloud cooplit tool

shared by Lisa Tansey on 27 Feb 13 - Cached
  • Lisa Tansey on 27 Feb 13
     
    Tool that creates a tag cloud from various text sources.
Lisa Tansey

Vocaroo | Online voice recorder - 0 views

vocaroo.com

cooplit online_learning recording audio tools

shared by Lisa Tansey on 27 Feb 13 - Cached
  • Lisa Tansey on 27 Feb 13
     
    tool mentioned by Ken Morrison in cooplit - you can record your voice then share/send the recording via email, facebook, linkeditn, twitter, google+, etc. or download the recording as an mp3, ogg, flac, or wav. came up in the forum where Bernard mentioned the study where (most) student preferred the voice feedback on their work over the textual.
Charlotte Pierce

HOW CULTURE DROVE HUMAN EVOLUTION | Edge.org - 0 views

www.edge.org/...-culture-drove-human-evolution

shared by Charlotte Pierce on 02 Feb 13 - No Cached
  • this is the idea that the real driver in the expansion of human brains was this growing cumulative body of cultural information,
  • important selection pressures over the course of human evolution are the things that culture creates
  • fire and cooking is that they're culturally transmitted
  • ...61 more annotations...
  • whole bunch of downstream effects
  • status you get from being particularly knowledgeable or skilled in an area
  • possess resources
  • From this we've argued that humans have two separate kinds of status, dominance and prestige, and these have quite different ethologies.
  • Dominance [ethology] is about physical posture, of size
  • attracted to prestigious
  • long period of interaction between genes and culture.
  • culture, our ability to learn from others, is an adaptation to fluctuating environments.
  • created a selection pressure for lots of cultural learning.
  • environment starts to fluctuate
  • for cultural learning to really take off, you need more than one model
  • trying out different techniques
  • humans are strangely good at long distance running.
  • only humans have it.
  • culturally transmitted
  • affected our anatomy
  • evolution of societal complexity
  • after the origins of agriculture, there was an intense period that continues today of intergroup competition, which favors groups who have social norms and institutions that can more effectively expand the group while maintaining internal harmony, leading to the benefits of exchange, of the ability to maintain markets, of division of labor and of higher levels of cooperation. Then you get intense competition amongst the early farming groups, and this is going to favor those groups who have the abilities to expand.
  • religions of modern societies are quite different than the religions we see in hunter gatherers and small scale societies
  • galvanize cooperation in larger groups and sustained cooperation amongst non relatives
  • mergence of high-moralizing gods
  • concerned about exactly the kinds of things that are going to be a problem for running a large-scale society, like how you treat other members of your religious group or your ethnic group
  • kinds of things you need to make a market run to have a successful division of labor
  • remind believers of their god, believers cheat less,
  • attending a ritual, you elevate the degree of belief in the high-moralizing gods or the priests
  • credibility-enhancing displays
  • animal sacrifice
  • circumcision
  • large sum of money
  • akes the observers more likely to acquire the belief
  • conformist transmission
  • self-perpetuating cycle
  • tap our cultural transmission abilities to deepen the faith
  • risk in developing specialization
  • culture is information stored in people's heads that gets there by some kind of social learning
  • we don't see amongst other animals is cumulative cultural evolution.
  • importance of population size and the interconnectedness for technology
  • case study in Tasmania
  • cuts off Tasmania from the rest of Australia
  • technological downturn
  • number of minds working on the problem gets small enough, you can actually begin to lose information
  • rates of innovation should continue to increase, especially with the emergence of communication technologies, because these allow ideas to flow very rapidly from place to place.
  • incentive to hide your information
  • monogamy
  • reduces male-male competition
  • discount the future less and engage in productive activities
  • trade freedom off against other social ills
  • widely varying amounts of wealth, especially among males
  • promote high levels of polygyny
  • stop distinguishing cultural and biological evolution as separate in that way. We want to think of it all as biological evolution
  • distinguish genetic evolution and cultural evolution
  • epigenetic evolution
  • Cognition and our ability to think are all interwoven
  • genetic programs is to be able to acquire ideas, beliefs and values and weave them into our brain such that they then affect our biolog
  • Ultimatum Game seemed to provide evidence that humans were innately inclined to punish unfairness
  • make a large-scale society run you have to shift from investing in your local kin groups and your enduring relationships to being willing to pay to be fair to a stranger
  • if you're going to be fair to a stranger, then you're taking money away from your famil
  • adherence to a world religion matters
  • relationship between market integrations using measures like distance from market and people's willingness to build impartial institutions
  • rule of law.
  • when you have risk managing institutions these impartial norms can spread.
  • Charlotte Pierce on 02 Feb 13
     
    [JOSEPH HENRICH:] The main questions I've been asking myself over the last couple years are broadly about how culture drove human evolution. Think back to when humans first got the capacity for cumulative cultural evolution-and by this I mean the ability for ideas to accumulate over generations, to get an increasingly complex tool starting from something simple. One generation adds a few things to it, the next generation adds a few more things, and the next generation, until it's so complex that no one in the first generation could have invented it. This was a really important line in human evolution, and we've begun to pursue this idea called the cultural brain hypothesis-this is the idea that the real driver in the expansion of human brains was this growing cumulative body of cultural information, so that what our brains increasingly got good at was the ability to acquire information, store, process and retransmit this non genetic body of information.
Charlotte Pierce

Do trees communicate? Networks, networks… | Abject - 0 views

abject.ca/do-trees-communicate

trees networks simard beiler mycorrhizal

shared by Charlotte Pierce on 25 Jan 13 - No Cached
  • how mycorrhizal networks connect the roots of trees, facilitating the sharing of resources.
  • Charlotte Pierce on 25 Jan 13
     
     how mycorrhizal networks connect the roots of trees, facilitating the sharing of resources.  new molecular tools that can distinguish the DNA of one fungal individual from another, or of one tree's roots from another.
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