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Suboptimal choice and initial-link requirement.

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Increasing the response requirement in pigeons significantly reduced preference for a suboptimal choice, even reversing it in some cases. This highlights the impact of effort on decision-making in animal behavior.

Keywords:
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Area of Science:

  • Behavioral neuroscience
  • Animal cognition

Background:

  • Suboptimal choice behavior is common in various species.
  • Understanding the factors influencing these choices is crucial for behavioral economics and psychology.

Purpose of the Study:

  • To investigate the effect of increased response requirements on suboptimal choice behavior in pigeons.
  • To analyze how effort influences the preference for a less advantageous option.

Main Methods:

  • Pigeons (n=14) were trained using a concurrent-chains suboptimal choice procedure.
  • Fixed-ratio (FR) requirements (FR1 and FR25) were manipulated within subjects.
  • Terminal-link stimuli signaled different probabilities of primary reinforcement or extinction.

Main Results:

  • A higher response requirement (FR25) significantly attenuated preference for the suboptimal alternative.
  • Preference was sometimes completely reversed by the increased response requirement.
  • Greater between-subject variability in choice responding was observed with higher response requirements.

Conclusions:

  • Effort, operationalized as response requirement, plays a significant role in modulating suboptimal choice behavior.
  • The findings have implications for understanding decision-making under varying costs.
  • A novel measure of cumulative choice responding was introduced to improve data analysis.