Archivio per novembre 2011

30
Nov
11

La strategia del pesce re e i “veicoli pensanti” di Braitenberg

Via Scoop.itBounded Rationality and Beyond

Un vero esperimento mentale richiederebbe una analisi ben più ampia di questi due accenni, tuttavia credo che sarebbe molto stimolante andare oltre, e disegnare le organizzazioni con il metodo dei Vehicles, poiché l’analisi tradizionale delle organizzazioni, fatta sulla base delle teorie del problem solving, nonostante i grandi progressi che ha permesso, non coglie a fondo gli aspetti di selfishness e cooperazione/conflitto che abbiamo visto.
di Massimo Egidi – Il Sole 24 Ore – leggi su http://24o.it/D8nnN
Via www.ilsole24ore.com

30
Nov
11

Guatemala News | The Neuroeconomics Revolution

Via Scoop.itBounded Rationality and Beyond

More on Neuroeconomics revolution. Economics is at the start of a revolution that is traceable to an unexpected source: medical schools and their research facilities. Efforts to link neuroscience to economics have occurred mostly in just the last few years, and the growth of neuroeconomics is still in its early stages. But its nascence follows a pattern: revolutions in science tend to come from completely unexpected places. A field of science can turn barren if no fundamentally new approaches to research are on the horizon. Scholars can become so trapped in their methods – in the language and assumptions of the accepted approach to their discipline – that their research becomes repetitive or trivial.
Via www.guatemala-times.com

30
Nov
11

Neuroeconomics revolution won’t be televised | The Japan Times Online

Via Scoop.itBounded Rationality and Beyond

Economics is at the start of a revolution that is traceable to an unexpected source: medical schools and their research facilities.Neuroscience — the science of how the brain, that physical organ inside one’s head, really works — is beginning to change the way we think about how people make decisions. These findings will inevitably change the way we think about how economies function. In short, we are at the dawn of “neuroeconomics.”
Via www.japantimes.co.jp

29
Nov
11

PLoS Biology: An Information Theoretic Characterisation of Auditory Encoding

Via Scoop.itBounded Rationality and Beyond

Understanding how the brain makes sense of our acoustic environment remains a major challenge. One way to describe the complexity of our acoustic environment is in terms of information entropy: acoustic signals with high entropy convey large amounts of information, whereas low entropy signifies redundancy. To investigate how the brain processes this information, we controlled the amount of entropy in the signal by using pitch sequences. Participants listened to pitch sequences with varying amounts of entropy while we measured their brain activity using functional magnetic resonance imaging (fMRI). We show that the planum temporale (PT), a region of auditory association cortex, is sensitive to the entropy in pitch sequences. In two convergent fMRI studies, activity in PT increases as the entropy in the pitch sequence increases. The results establish PT as an important “computational hub” that requires less resource to encode redundant signals than it does to encode signals with high information content.
Via www.plosbiology.org

29
Nov
11

PLoS Biology: Converging Intracranial Markers of Conscious Access

Via Scoop.itBounded Rationality and Beyond

We compared conscious and nonconscious processing of briefly flashed words using a visual masking procedure while recording intracranial electroencephalogram (iEEG) in ten patients. Nonconscious processing of masked words was observed in multiple cortical areas, mostly within an early time window (<300 ms), accompanied by induced gamma-band activity, but without coherent long-distance neural activity, suggesting a quickly dissipating feedforward wave. In contrast, conscious processing of unmasked words was characterized by the convergence of four distinct neurophysiological markers: sustained voltage changes, particularly in prefrontal cortex, large increases in spectral power in the gamma band, increases in long-distance phase synchrony in the beta range, and increases in long-range Granger causality. We argue that all of those measures provide distinct windows into the same distributed state of conscious processing. These results have a direct impact on current theoretical discussions concerning the neural correlates of conscious access.
Via www.plosbiology.org

29
Nov
11

The End of Rational Economics? | Paul Krugman | Big Think

Via Scoop.itBounded Rationality and Beyond

The Nobel Prize winner says economics should move beyond the limits of ‘rational self-interest.’..Paul Krugman: I think the biggest challenge is that the method that has worked so well for economics is probably close to its limits. Economics has gotten a tremendous amount of mileage about . . . by saying what would a rational, self-interested person do? That has been the core. And for very many things, that has been a very productive way. You learn an enormous amount, and it serves as the basis not just for abstract theories, but for actual empirical analysis of behavior and of policy. But in a way we’ve sort of done what you can do with that, and more and more the key issues in economics are . . . involve the limits of rationality; involve the places where people don’t have the ability to assess all of the data they have where people are . . . don’t make rational choices.
Via bigthink.com

28
Nov
11

Toward a cognitive interpretation of ethics and economics | Neuroscienze.net

Via Scoop.itBounded Rationality and Beyond

All representations created in the mind modify neuronal configurations, and are in their turn modified by them. This type of bond is expressed in the subjectivity of individual perception. As mentioned above, each configuration is established on the former, and, in turn, functions as a basis for the next. The consequence is that each brain produces different configurations, unrepeatable in other individuals, being related to their own and personal relationship with the environment. It is evident that the environment is not the bearer of meanings, but of stimulations that the individual includes within their own life experience. The individual does not see the world as it is, but in the way the brain represents it, and the meaning derives from the interaction of this vision with personal experience. Every living creature lives surrounded by their own needs and the drive to satisfy them, but the presence of others in the world leads us to limit the survival to the possibility of escaping from predators, to win the competition for food and reproduction in solidarity. It is therefore necessary to establish a contact with other individuals, and consequently the ability to communicate what the brain produces, according to a draft ethically significant, because, obviously, economically binding, is needed.
Via www.neuroscienze.net




Time is real? I think not

novembre: 2011
L M M G V S D
« Ott   Dic »
 123456
78910111213
14151617181920
21222324252627
282930  

Commenti recenti

Inserisci il tuo indirizzo e-mail per iscriverti a questo blog e ricevere notifiche di nuovi messaggi per e-mail.

Segui assieme ad altri 835 follower

Latest Tweets

Alessandro Cerboni


%d blogger hanno fatto clic su Mi Piace per questo: