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Do humans, like pigeons, show suboptimal choice?

High densities of A. Preference for mixed- versus fixed-ratio schedules.

In fact, we have found that for pigeons, if the suboptimal outcome ooptimo delayed, relative to the optimal outcome, the pigeons begin to choose optimally Zentall and Stagner, b, Exp.

Journal of the Experimental Analysis of Behavior93 A winning outcome consist of lining up three of the same symbols, one on each reel e.


In fact, problem gambling is recognized clinically as an impulse control disorder in which people show impaired behavioral inhibition and a failure to consider the long-term consequences of the decisions they make Dorrajeo, This analysis assumes that it is the value of the conditioned reinforcer that follows choice, rather than the frequency of reinforcement associated with that choice, that determines whether the pigeons will choose suboptimally or not and it leads to in interesting prediction.

Determinants of pigeons’ choice between certain and probabilistic outcomes. Psychological Medicine41 This account is similar to that suggested by Gipson et al. The delay at which the organism is indifferent between the two alternatives defines the slope of the discounting function and the degree of impulsivity.


Oltimo with this possibility, the pigeons in Gipson et al. To what extent are there analogous conditioned reinforcers present in human gambling? The suboptimal choice task provides a reasonable analog to human commercial gambling behavior.

Using a computer simulation of three slot gambling machines to investigate a gambler’s preference among varying densities of near-miss alternatives. Thus, when humans engage in commercial gambling they are making suboptimal choices, however, in spite of the poor odds of winning over losing, it is possible for one to justify the behavior in terms of the excitement or pleasure derived from the activity.

Biological Sciences, In the same study it was found that the pigeons were willing to work considerably harder for the discriminative stimuli than for the nondiscriminative stimuli. Wilson — 50 years of contributions. Journal of Molluscan Studies Under these conditions the pigeons showed a very strong preference for the discriminative stimulus alternative. Once again, in spite of the fact that the optimal alternative was associated with twice as much reinforcement as the suboptimal alternative, we found indifference between the two alternatives.

La concha de los individuos de la especie P. When good news leads to bad choices. Esto se traduce en que la curva propuesta por Poblete et al.

Neuropsychopharmacology36 Impulsivity and Pathological Gambling: Revista Chilena de Historia Natural In these experiments, A. Habitat and Grazing influence on terrestrial ant diversity in subtropical grassland and savanna of Argentina.

The alternative that provided a consistent 3 pellets per trial continued to do so. Del mismo modo, los individuos adultos presentaron una preferencia significativa por S.

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Journal of the Experimental Analysis of Behavior43 In addition to what gamblers describe as the pleasure of gambling, most public gambling e. Journal of the Experimental Analysis of Behavior, Although both hypotheses explain why the signal for reinforcement that follows the suboptimal alternative would be preferred over the signal for reinforcement that follows the optimal alternative, it is not clear how that difference can overcome the inherent bias in primary reinforcement that should be associated with the optimal alternative.


Journal of Experimental Psychology94 De este modo, A. Pigeons have been found to prefer choices that produce discriminative stimuli over those that do not.

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In all of the research cited, the probability of reinforcement was manipulated, however, when humans gamble, the alternatives generally involve different magnitudes of reinforcement rather than different probabilities of reinforcement. Psychopharmacology, It implies that exposing human gamblers to an environment that is socially and physically enriched may reduce the attraction of gambling.

Trends in Ecology and Evolution El consumo de alimento fue controlado diariamente y las presas consumidas fueron identificadas y medidas utilizando un pie de metro digital.

Human gambling generally involves taking a risk on a low probability high outcome alternative over the more economically optimal high probability low outcome alternative not gambling. Este muestreo fue repetido en cuatro ocasiones, bajo distintos escenarios ambientales: Cue-induced brain activity in pathological gamblers.