Posts Tagged ‘Edmund Rolls’

Fifteen books to change the world

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The books listed below are suggested as those most helpful to understanding the theories of consciousness discussed on this site. 1.)  The Emperor’s New Clothing  –  Roger Penrose 2.)  Shadows of the Mind  –  Roger Penrose 3.)  Three Roads to Quantum Gravity  –  Lee Smolin 4.)  Emotion Explained  –  Edmund T. Rolls 5.)  Memory Attention and Decision Making  –  Edmund T. Rolls 6.)  Neuroculture  –  Edmund T. Rolls 7.)  The Orbitofrontal cortex  –  David H. Read more […]

Rolls on visual perception

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Neuroculture: On the implications of brain science for understanding Edmund T. Rolls, Oxford Centre for Computational Neuroscience Oxford University Press (2012) pp. 65- visual perception Summary and review of the above section Keywords:  visual perception, ventral stream, dorsal stream, reward/punishers Visual perception: It is pointed out that computer vision science has not yet mastered the problem of perception. Single neurons in the primary visual cortex respond to edges or Read more […]

Neural connectivity

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Neuroculture: On the implications of brain science for understanding Edmund T. Rolls, Oxford Centre for Computational Neuroscience Oxford University Press (2012) pp. 1-27, single neurons and neuron populations Summary and review of the above secttion Keywords: CA3, single neurons, neuron populations, neuron selectiveness Rolls starts his book by arguing that there are too few genes to specify the total connectivity of the brain. Genes can only specify general rules such as the types Read more […]

Learning

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Neuroculture: On the implications of brain science for understanding Edmund T. Rolls, Oxford Centre for Computational Neuroscience Oxford University Press (2012) P. Summary of p. 27-65 re: learning P. Keywords: CA3, CA1, hippocampus Learning is based on increases in synaptic strength occurring as a result of the firing of pre-synaptic neurons  and the activation of post-synaptic neurons. This is the basis of long-term synaptic potentiation (LTP). The pre and post synaptic activity needs Read more […]

Decision making, determinism and consciousness

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Noise in the brain, decision making, determinism, free will and consciousness Edmund Rolls New Horizons in the Neuroscience of Consciousness – Eds – Elaine Perry, Daniel Collerton, Fiona Le Beau & Heather Ashton In the introduction to his chapter Rolls emphasises that decision making in the brain involves a mix of the reasoning system and the reward system, the latter to a large extent meaning the same thing as our emotional response. Rolls has made an extremely valuable contribution Read more […]

Memory, attention and decision making

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Memory, Attention & Decision-Making (Chapter 3. Reward and punishment-related learning; emotion and motivation) Edmund Rolls, Oxford University Oxford University Press (2008) The author views the orbitofrontal region of the prefrontal cortex as the most important region for determining the value of rewards or punishers. Objects are first represented in the visual, somatosensory and other areas of the cortex without having any aspect of reward value. This only arises in the orbitofrontal Read more […]

Subjectivity and the brain

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Taste-olfactory convergence and the representation of the pleasantness of flavour in the human brain Ivan de Araujo, Edmund T. Rolls et al, University of Oxford European Journal of Neuroscience, Vol. 18, pp. 2059-2068, 2003 http://blackwellpublishing.com/journal.asp?0953-816X INTRODUCTION:   This study is of importance in not only demonstrating that subjective assessments of pleasantness correlates to activity in specific parts of the orbitofrontal cortex, but further that these correlations Read more […]

The subjective and the orbitofrontal

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Subjective response and the orbitofrontal Representation of painful and pleasant in the human orbitofrontal and cingulate cortex E. T. Rolls et al, University of Oxford Cerebral Cortex, 13 (3) pp. 308-17 (2003) doi.10.1093/cercor/13.3.308 http://cercor.oxfordjournals.org/ In this paper, the authors demonstrate that the orbitofrontal and anterior cingulate cortices respond not to the intensity of inputs, but to their emotional positive/negative qualities or else their reward/punisher Read more […]

Reward/punishment learning

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Memory, Attention & Decision-Making (Chapter 3. Reward and punishment-related learning; emotion and motivation) Edmund Rolls, Oxford University Oxford University Press (2008) INTRODUCTION: Neuroscience and Freewill:  The author views the orbitofrontal region of the prefrontal cortex as the most important region for determining the value of rewards or punishers. Objects are first represented in the visual, somatosensory and other areas of the cortex without having any aspect of reward Read more […]

Decision making & consciousness

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Noise in the brain, decision making, determinism, free will and consciousness Edmund Rolls In:- New Horizons in the Neuroscience of Consciousness – Eds – Elaine Perry, Daniel Collerton, Fiona Le Beau & Heather Ashton In the introduction to his chapter Rolls emphasises that decision making in the brain involves a mix of the reasoning system and the reward system, the latter to a large extent meaning the same thing as our emotional response. Rolls has made an extremely valuable contribution Read more […]