scholarly journals Domestic dogs' gaze and behavior in 2-alternative choice tasks

2021 ◽  
Author(s):  
Julia Espinosa ◽  
Daphna Buchsbaum
Keyword(s):  
Decision Making ◽  
Visual Discrimination ◽  
Visual Information ◽  
Choice Behavior ◽  
Choice Task ◽  
Domestic Dogs ◽  
The World ◽  
Alternative Choice ◽  
And Behavior ◽  
Choice Tasks

Species such as humans rely on their excellent visual abilities to perceive and navigate the world. Dogs have co-habited with humans for millennia, yet we know little about how they gather and use visual information to guide decision-making. Across five experiments, we presented pet dogs (N=49) with two foods of unequal value in a 2-alternative choice task, and measured whether dogs showed preferential gazing, and whether visual attention patterns were associated with item choice. Overall, dogs looked significantly longer at the preferred (high value) food over the low value alternative. There was also evidence of item-dependent predictive gaze—dogs looked proportionally longer at the item they subsequently chose. Surprisingly, dogs’ choice behavior was only slightly above chance, despite visual discrimination. These results suggest that dogs use visual information in the environment to inform their choice behavior, but that other factors may also contribute to their decision-making.

scholarly journals Attentional mechanisms drive systematic exploration in young children

2020 ◽  
Author(s):  
Nathaniel J. Blanco ◽  
Vladimir Sloutsky
Keyword(s):  
Decision Making ◽  
Young Children ◽  
Information Gathering ◽  
Choice Task ◽  
Attention Allocation ◽  
Top Down ◽  
Distributed Attention ◽  
Systematic Exploration ◽  
The World ◽  
Attentional Mechanisms

Exploration is critical for discovering how the world works. Exploration should be particularlyvaluable for young children, who have little knowledge about the world. Theories of decision- making describe systematic exploration as being primarily driven by top-down cognitive control, which is immature in young children. Recent research suggests that a type of systematic exploration predominates in young children’s choices, despite immature control, suggesting that it may be driven by different mechanisms. We hypothesize that young children’s tendency to distribute attention widely promotes elevated exploration, and that interrupting distributed attention allocation through bottom-up attentional capture would also disrupt systematic exploration. We test this hypothesis by manipulating saliency of the options in a simple choice task. Saliency disrupted systematic exploration, thus indicating that attentional mechanisms may drive children’s systematic exploratory behavior. We suggest that both may be part of a larger tendency toward broad information gathering in young children.

When the Absence of Reasoning Breeds Meaning

2018 ◽  
Author(s):  
Carey K. Morewedge ◽  
Daniella M. Kupor
Keyword(s):  
Decision Making ◽  
External Source ◽  
Judgment And Decision Making ◽  
Dream Interpretation ◽  
The Self ◽  
The World ◽  
Religious Thoughts ◽  
The Many ◽  
And Behavior ◽  
Insight Into

Intuitions, attitudes, images, mind-wandering, dreams, and religious messages are just a few of the many kinds of uncontrolled thoughts that intrude on consciousness spontaneously without a clear reason. Logic suggests that people might thus interpret spontaneous thoughts as meaningless and be uninfluenced by them. By contrast, our survey of this literature indicates that the lack of an obvious external source or motive leads people to attribute considerable meaning and importance to spontaneous thoughts. Spontaneous thoughts are perceived to provide meaningful insight into the self, others, and the world. As a result of these metacognitive appraisals, spontaneous thoughts substantially affect the beliefs, attitudes, decisions, and behavior of the thinker. We present illustrative examples of the metacognitive appraisals by which people attribute meaning to spontaneous secular and religious thoughts, and the influence of these thoughts on judgment and decision-making, attitude formation and change, dream interpretation, and prayer discernment.

Optimal Decision Making on the Basis of Evidence Represented in Spike Trains

2010 ◽  
Vol 22 (5) ◽  
pp. 1113-1148 ◽  
Author(s):  
Jiaxiang Zhang ◽  
Rafal Bogacz
Keyword(s):  
Decision Making ◽  
Spike Trains ◽  
Decision Procedures ◽  
Optimal Decision ◽  
Ratio Test ◽  
Perceptual Decision Making ◽  
Sensory Evidence ◽  
Optimal Decision Making ◽  
Alternative Choice ◽  
Choice Tasks

Experimental data indicate that perceptual decision making involves integration of sensory evidence in certain cortical areas. Theoretical studies have proposed that the computation in neural decision circuits approximates statistically optimal decision procedures (e.g., sequential probability ratio test) that maximize the reward rate in sequential choice tasks. However, these previous studies assumed that the sensory evidence was represented by continuous values from gaussian distributions with the same variance across alternatives. In this article, we make a more realistic assumption that sensory evidence is represented in spike trains described by the Poisson processes, which naturally satisfy the mean-variance relationship observed in sensory neurons. We show that for such a representation, the neural circuits involving cortical integrators and basal ganglia can approximate the optimal decision procedures for two and multiple alternative choice tasks.

The Actor-Critic Learning Is Behind the Matching Law: Matching Versus Optimal Behaviors

2008 ◽  
Vol 20 (1) ◽  
pp. 227-251 ◽  
Author(s):  
Yutaka Sakai ◽  
Tomoki Fukai
Keyword(s):  
Decision Making ◽  
Variable Interval ◽  
Correct Choice ◽  
Matching Law ◽  
Neural Systems ◽  
Schedules Of Reinforcement ◽  
Neural Basis ◽  
Schedule Task ◽  
Alternative Choice ◽  
Choice Tasks

The ability to make a correct choice of behavior from various options is crucial for animals' survival. The neural basis for the choice of behavior has been attracting growing attention in research on biological and artificial neural systems. Alternative choice tasks with variable ratio (VR) and variable interval (VI) schedules of reinforcement have often been employed in studying decision making by animals and humans. In the VR schedule task, alternative choices are reinforced with different probabilities, and subjects learn to select the behavioral response rewarded more frequently. In the VI schedule task, alternative choices are reinforced at different average intervals independent of the choice frequencies, and the choice behavior follows the so-called matching law. The two policies appear robustly in subjects' choice of behavior, but the underlying neural mechanisms remain unknown. Here, we show that these seemingly different policies can appear from a common computational algorithm known as actor-critic learning. We present experimentally testable variations of the VI schedule in which the matching behavior gives only a suboptimal solution to decision making and show that the actor-critic system exhibits the matching behavior in the steady state of the learning even when the matching behavior is suboptimal. However, it is found that the matching behavior can earn approximately the same reward as the optimal one in many practical situations.

scholarly journals Isomorphic decisional biases across perceptual tasks

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0245890
Author(s):  
Mario Treviño ◽  
Santiago Castiello ◽  
Oscar Arias-Carrión ◽  
Braniff De la Torre-Valdovinos ◽  
Ricardo Medina Coss y León
Keyword(s):  
Choice Behavior ◽  
Choice Task ◽  
External Factors ◽  
Experimental Results ◽  
Behavioral Strategies ◽  
Internal Factors ◽  
Individual Traits ◽  
Behavioral Tasks ◽  
Alternative Choice ◽  
Internal And External Factors

Humans adjust their behavioral strategies to maximize rewards. However, in the laboratory, human decisional biases exist and persist in two alternative tasks, even when this behavior leads to a loss in utilities. Such biases constitute the tendency to choose one action over others and emerge from a combination of external and internal factors that are specific for each individual. Here, we explored the idea that internally-mediated decisional biases should stably occur and, hence, be reflected across multiple behavioral tasks. Our experimental results confirm this notion and illustrate how participants exhibited similar choice biases across days and tasks. Moreover, we show how side-choice behavior in a two alternative choice task served to identify participants, suggesting that individual traits could underlie these choice biases. The tasks and analytic tools developed for this study should become instrumental in exploring the interaction between internal and external factors that contribute to decisional biases. They could also serve to detect psychopathologies that involve aberrant levels of choice variability.

Improving managers’ intelligence through Systems Thinking

Kybernetes ◽  
2019 ◽  
Vol 48 (1) ◽  
pp. 58-78 ◽  
Author(s):  
Piero Mella ◽  
Patrizia Gazzola
Keyword(s):  
Decision Making ◽  
Control Systems ◽  
Systems Thinking ◽  
Content Type ◽  
Learning Capacity ◽  
The World ◽  
Decision Making Processes ◽  
Defensive Routines ◽  
And Behavior ◽  
System Archetypes

Purpose Accepting the assumption that our intelligence depends on the ability to construct models which may allow us to acquire, update and transmit our knowledge, this paper aims to highlight the role of Systems Thinking in developing the “intelligence” of managers for all types and sizes of organization. Design/methodology/approach Four relevant contributions for improving the “intelligence” of managers will be examined: the ability to understand and model dynamic systems, the structure of Control Systems, the rules of the decision-making process and the identification of systems archetypes. Findings The paper will show that Systems Thinking, through the logic of Control Systems, offers managers a comprehensive representation of the problem-solving and decision-making processes, teaching them how to distinguish problems from symptoms and to acquire a leverage effect. Additionally, Senge’s system archetypes will be presented and new archetypes will be added to Senge’s list. Practical implications The viability of every organization and its effective resilience and survival make it more than ever necessary for managers to adopt Systems Thinking, not only as a technique but also primarily as a discipline for efficient and effective thinking, learning, communication and explanation with regard to the dynamics of the world. Originality/value The message of the paper is that by continually applying the rules and language of Systems Thinking, managers develop the capability to continually adapt their models to the dynamics of the world, increase their learning capacity and better gauge their consequent judgments, decisions and behavior, thereby removing the mental impediments to intelligence (inappropriate mental models, defensive routines, judgmental biases, rules, etc.).

Ultrastructure of neuromuscular relationships in the canine heartworm (dirofilaria immitis)

1986 ◽  
Vol 44 ◽  
pp. 278-279
Author(s):  
W. L. Steffens ◽  
Nancy B. Roberts ◽  
J. M. Bowen
Keyword(s):  
Dirofilaria Immitis ◽  
Domestic Dogs ◽  
Structural Description ◽  
Pharmacological Effects ◽  
Free Living ◽  
Canine Heartworm ◽  
The World ◽  
Synaptic Region ◽  
Muscle Innervation ◽  
Insight Into

The canine heartworm is a common and serious nematode parasite of domestic dogs in many parts of the world. Although nematode neuroanatomy is fairly well documented, the emphasis has been on sensory anatomy and primarily in free-living soil species and ascarids. Lee and Miller reported on the muscular anatomy in the heartworm, but provided little insight into the peripheral nervous system or myoneural relationships. The classical fine-structural description of nematode muscle innervation is Rosenbluth's earlier work in Ascaris. Since the pharmacological effects of some nematacides currently being developed are neuromuscular in nature, a better understanding of heartworm myoneural anatomy, particularly in reference to the synaptic region is warranted.

Medical Diagnosis from a Clinician’s Point of View

1978 ◽  
Vol 17 (01) ◽  
pp. 28-35
Author(s):  
F. T. De Dombal
Keyword(s):  
Decision Making ◽  
Data Analysis ◽  
Computer Science ◽  
Medical Diagnosis ◽  
Information Science ◽  
Point Of View ◽  
Joint Research ◽  
The World

This paper discusses medical diagnosis from the clinicians point of view. The aim of the paper is to identify areas where computer science and information science may be of help to the practising clinician. Collection of data, analysis, and decision-making are discussed in turn. Finally, some specific recommendations are made for further joint research on the basis of experience around the world to date.

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