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BecketTodd's profile
Rebecca Todd
Rebecca Todd
Rebecca Todd
@BecketTodd

Tweets

Rebecca Todd

@BecketTodd

University of British Columbia. Tweets about neuroscience, cognitive neuroscience, psychology and sometimes bears.

Vancouver, British Columbia
mclab.psych.ubc.ca
Joined June 2012

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    1. Rebecca Todd‏ @BecketTodd 16 Dec 2017
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      Recently realized I've been reinventing wheels created by Ed Rolls & Jaak Panksepp, internalized early in career. Seminal theories fundamental to thinking about effects of value and valence on cognition and action in any species: https://www.cambridge.org/core/journals/behavioral-and-brain-sciences/article/on-the-brain-and-emotion/7DED0C6C83F130B0CD84242030A8E63B … & http://www.oupcanada.com/catalog/9780195178050.html …

      2 replies 4 retweets 14 likes
    2. Rei Akaishi‏ @rei_akaishi 16 Dec 2017
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      Replying to @BecketTodd

      I am curious as to how we can integrate value (1D) and emotions (multi Ds).

      1 reply 0 retweets 0 likes
    3. Rebecca Todd‏ @BecketTodd 16 Dec 2017
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      Replying to @rei_akaishi

      In the Rolls paper he more or less distinguishes a valence (direct punishment to reward) and a value (gain vs. loss of reward) axis, and links the presence or absence of reward vs. punishment to specific emotional responses. I think I buy it. Am curious about objections though.pic.twitter.com/2QmRKufe9e

      1 reply 2 retweets 5 likes
    4. Rebecca Todd‏ @BecketTodd 16 Dec 2017
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      Replying to @BecketTodd @rei_akaishi

      I had been arguing w a colleague that direct punishment or threat is qualitatively different from loss of reward - not just because primary v secondary. I sketched 2 axes and realized I'd gotten the idea from somewhere, maybe Panksepp. @WilCunningham reminded me it was Rolls.

      1 reply 1 retweet 2 likes
    5. Rei Akaishi‏ @rei_akaishi 16 Dec 2017
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      Replying to @BecketTodd @WilCunningham

      Great. Thanks. It is very interesting to see these spaces of values and emotions. Late Panksepp differentiated emotions further (4-7 types). I am curious as to how his differentiated emotions map to these spaces.

      2 replies 1 retweet 0 likes
    6. Rei Akaishi‏ @rei_akaishi 16 Dec 2017
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      Replying to @rei_akaishi @BecketTodd @WilCunningham

      Another interesting question is “what is happening when preferences reverse?” Reversals occur across different emotional states. Can adding different axes explain these phenomena?

      1 reply 0 retweets 0 likes
      Rebecca Todd‏ @BecketTodd 16 Dec 2017
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      Replying to @rei_akaishi @WilCunningham

      Do you mean in reversal learning tasks? Can you explain a bit more what you mean?

      5:10 PM - 16 Dec 2017
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Rei Akaishi‏ @rei_akaishi 16 Dec 2017
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          Replying to @BecketTodd @WilCunningham

          No. I mean reversal of preferences of choice options. Value or utility is 1D precisely because it can determine which choice option is chosen consistently. This is the definition of it in an economical sense. Reversal of preference means that this does not hold.

          2 replies 0 retweets 0 likes
        3. Rei Akaishi‏ @rei_akaishi 16 Dec 2017
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          Replying to @rei_akaishi @BecketTodd @WilCunningham

          Without learning, but under different emotional conditions, reversal of preferences can occur.

          1 reply 0 retweets 0 likes
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