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Rudy Garns

Neuroskeptic: How Brain Cells Avoid Getting All Tied Up - 0 views

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    During the development of the brain, young neurones need to form connections with other cells. But equally important, they need to avoid making connections with themselves.
Rudy Garns

Saxelab Social Cognitive Neuroscience Laboratory at MIT - 0 views

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    publication
Rudy Garns

Slide show: How your brain works - 0 views

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    Your brain contains billions of nerve cells arranged in patterns that coordinate thought, emotion, behavior, movement and sensation. A complicated highway system of nerves connects your brain to the rest of your body, so communication can occur in split seconds. Think about how fast you pull your hand back from a hot stove. While all the parts of your brain work together, each part is responsible for a specific function - controlling everything from your heart rate to your mood.
Rudy Garns

The Cognitive Neuroscience of Human Decision Making: A Review and Conceptual Framework - 0 views

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    Fellows 3 (3): 159 -- Behavioral and Cognitive Neuroscience Reviews
Rudy Garns

MaddoxLab - Cognitive Neuroscience of Categorization and Decision Making - UT at Austin - 0 views

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    A major focus of our research is to examine the neurobiological underpinnings of category learning and attentional processes. We achieve this goal through a blending of empirical data collection, cognitive neuroscience, and mathematical modeling.
Rudy Garns

Neuroscience and Decision Making - 0 views

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    The purpose of this paper is to provide an integrative review of the area of Neuroscience and its relationship to Behavioral Decision Making. I will start by discussing Prospect theory and the role that neuroscience can play in understanding human behavior under risky situations. I will then discuss the Somatic Marker Hypothesis and its application in decision making. Further, I will highlight some techniques that are used to measure neural responses. Finally, I will end with future avenues of research where Neuroscience techniques can be applied in studying different Marketing phenomena.
Rudy Garns

Neuroscience and Decision Making - 0 views

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    This paper reviews the cognitive neuroscience of decision making and summarizes a talk given by the author at a SOL-UK workshop entitled 'Improving the Decision-Taking Process in Institutions' and held at the London School of Economics on 23rd June, 2006.\n\nAn operational definition of decision making is discussed as it relates to neuroscientific research and application. Neuroanatomical and cortico- subcortical as well as cortico-cortical connections between brain structures are then reviewed as they relate to the decision making process. Finally, while biased toward the individual level of analysis, extrapolations to the larger group environment are also discussed.
Rudy Garns

We Empathize, Therefore We Are: Toward a Moral Neuropolitics - 0 views

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    "Based on recent findings from neuroscience we can plausibly deduce that the mirror neurons of the viewer were engaged by these images of others suffering. The appeal was to the public's awakened sense of compassion and revulsion toward graphic depictions of the wholesale violence, barbarity, and torture routinely practiced on these Atlantic voyages. Rediker notes that the images would instantaneously "make the viewer identify and sympathize with the 'injured Africans' on the lower deck of the ship . . ." while also producing a sense of moral outrage (p. 315, Olson, 2008)."
Rudy Garns

Of Mice and Models - 0 views

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    "Now a recent breakthrough by the Cambridge neuroscientist and geneticist Seth Grant may provide a third possibility. In a report published in the June 2008 issue of Nature Neuroscience, Grant and his colleagues analyzed synapses in organisms of increasing evolutionary complexity, from single-celled organisms to vertebrates. They found that more advanced organisms also had more complex synapses, allowing neurons to communicate in more complicated ways." Seed
Rudy Garns

More Evidence That Intelligence Is Largely Inherited: Researchers Find That Genes Deter... - 0 views

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    In a study published recently in the Journal of Neuroscience, UCLA neurology professor Paul Thompson and colleagues used a new type of brain-imaging scanner to show that intelligence is strongly influenced by the quality of the brain's axons, or wiring that sends signals throughout the brain. The faster the signaling, the faster the brain processes information. And since the integrity of the brain's wiring is influenced by genes, the genes we inherit play a far greater role in intelligence than was previously thought.
Rudy Garns

Social Decision-Making: Insights from Game Theory and Neuroscience - 0 views

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    By combining the models and tasks of Game Theory with modern psychological and neuroscientific methods, the neuroeconomic approach to the study of social decision-making has the potential to extend our knowledge of brain mechanisms involved in social decisions and to advance theoretical models of how we make decisions in a rich, interactive environment. Research has already begun to illustrate how social exchange can act directly on the brain's reward system, how affective factors play an important role in bargaining and competitive games, and how the ability to assess another's intentions is related to strategic play. These findings provide a fruitful starting point for improved models of social decision-making, informed by the formal mathematical approach of economics and constrained by known neural mechanisms. -- Sanfey 318 (5850): 598 -- Science
Rudy Garns

Mixing Memory : Emotion, Reason, and Moral Judgment - 0 views

  • emotion and intuition, both of which operate automatically and unconsciously for the most part, play a much larger role than most philosophers and psychologists had previously been willing to admit.
  • VMPC plays a role in encoding the reward value of stimuli, as well as emotions like fear.
  • determines approach and avoidance behavior.
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  • patients with damage to the VMPC, who have trouble processing emotional value as a result of that damage, would behave differently in those scenarios than normal individuals (and other brain-damaged patients
  • The standard interpretation of these results is that in the impersonal scenarios, people are making the moral decision using conscious reasoning. Specifically, they are thought to be using utilitarian ethical principles to make the decision to flip the switch and kill one person to save five. In the personal scenarios, however, people tend not to make utilitarian decisions, and researchers therefore believe that they are basing their decision on the emotional response the situation elicits.
  • damage to the VMPC can make decisions related to the value of a stimulus more difficult
  • there was a difference between the normal patients (and brain-damaged elsewhere patients) and the VMPC-damaged patients for the high-conflict personal moral scenarios. The normal and non-VMPC brain-damaged patients said "no" (they wouldn't smother the baby, e.g.) about 80% of the time in response to these scenarios, while the VMPC-damaged patients said no less than 60% of the time (in fact, their response rate was pretty close to 50-50).
  • more rational
  • they just didn't know how to respond to those scenarios
  • unable to decide
  • when people are making these decisions, both the emotional reaction and the moral principle are available at the same time, and one will win out over the other, depending largely on the strength of the emotional response (which is strong in the personal scenarios, and weak in the impersonal ones, at least when they're just being read on paper). This would be inconsistent with strong intuitionist theories of moral judgment.
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    Koenigs, M., Young, L., Adolphs, R., Tranel, D., Cushman, F., Hauser, M., & Damasion, A. (2007). Damage to the prefrontal cortex increases utilitarian moral judgements. Nature.
Rudy Garns

Study Finds Brain Injury Changes Moral Judgment - New York Times - 0 views

  • native revulsion
  • ventromedial prefrontal cortex
  • active during moral decision-making
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  • a very specific kind of emotion-based judgment is altered when the region is offline
  • emotional system
  • utilitarian cost-benefit analyses
  • ventromedial area
  • ventromedial area
  • blind to subtle social cues, making them socially awkward
  • strongly rejected doing harm to others in situations that were not a matter of trading one certain death for another.
  • direct action to kill or harm someone
  • Those with ventromedial injuries were about twice as likely as the other participants to say they would push someone in front of the train
  • navigate social interactions
  • brain stem
  • amygdala
  • emotional memories,
  • social emotions that we can feel, like embarrassment, guilt, compassion that are critical to guiding our social behavior,
  • ension between cost-benefit calculations and instinctive emotion
  • ancient principle: respect for the life of another human being
    • Rudy Garns
       
      It would be interesting to see whether other primates use the ventromedial cortex for similar responses to dilemmas involving conspecifics.
  • increased willingness to kill or harm another person if doing so would save others' lives
    • Rudy Garns
       
      I wonder what would happen if you adjust the identity of the sacrificable person. What happens if person is a stranger versus a family member? They do run the "smother your baby" dilemma. Does it make a difference if it is a stranger? What about alternative to the other five victims? What information is the VMPFC working with?
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