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Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
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The different configurations of source-load connections include wye (star) and delta connections. The relationship between line and phase voltages and currents varies depending on the configuration. When the source is supplying power, it is transmitted through the wires to the load, and during this transmission, some power is absorbed by the wires, leading to line loss.
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In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
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When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
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Efectos de frecuencia en la toma de decisiones que implican la minimización de pérdidas

Darrell A Worthy1, Mianzhi Hu1

  • 1Texas A&M University, 4235 TAMU College Station, TX 77845-4235, USA.

Cognition
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Resumen

Los modelos de toma de decisiones tienen dificultades con la minimización de pérdidas. Modelos novedosos como PVPE-Decay y Delta-Uncertainty explican mejor los efectos de frecuencia en escenarios de pérdidas, lo que sugiere que el contexto influye en cómo las personas perciben las pérdidas.

Palabras clave:
Comportamiento de elecciónToma de decisionesModelado matemáticoTeoría de las perspectivasAprendizaje por refuerzo

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Área de la Ciencia:

  • Psicología Cognitiva
  • Neuroeconomía
  • Ciencias de la Decisión

Sus antecedentes:

  • Los efectos de frecuencia en la toma de decisiones muestran preferencia por opciones de alta frecuencia, incluso si son menos gratificantes.
  • El modelo de aprendizaje por refuerzo (RL) Decay predice esto, asumiendo una mejor memoria para resultados frecuentes.
  • La investigación se ha centrado principalmente en las ganancias, dejando inexplorados los escenarios de minimización de pérdidas.

Objetivo del estudio:

  • Probar la predicción del modelo Decay de un efecto de frecuencia invertido en la minimización de pérdidas.
  • Investigar cómo la frecuencia influye en las elecciones cuando el objetivo es minimizar las pérdidas.
  • Desarrollar y evaluar modelos alternativos para la toma de decisiones bajo pérdidas.

Principales métodos:

  • Se realizaron tres experimentos que involucran tareas de minimización de pérdidas.
  • Los participantes tomaron decisiones en escenarios diseñados para minimizar las pérdidas (puntos o gastos hipotéticos).
  • Se analizaron los datos para evaluar el ajuste del modelo Decay y los modelos novedosos propuestos (PVPE-Decay, Delta-Uncertainty).

Principales resultados:

  • El modelo Decay predijo mal el comportamiento en escenarios de minimización de pérdidas.
  • Se observó un efecto de frecuencia modesto en un contexto de compras (Experimento 2).
  • Los efectos de frecuencia se atenuaron pero no se revirtieron en tareas de minimización de puntos (Experimentos 1 y 3).

Conclusiones:

  • El modelo Decay es inadecuado para explicar los efectos de frecuencia en la minimización de pérdidas.
  • Los modelos novedosos, PVPE-Decay y Delta-Uncertainty, ofrecen mejores explicaciones para los efectos observados.
  • El contexto y el procesamiento del valor relativo son cruciales para comprender la toma de decisiones bajo pérdidas.