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Choosing between options in the face of uncertainty in the information presented from the outside world reflects a crucial function of the brain. A simple conceptual framework for understanding such decision-making is the LATER (Linear Approach to Threshold with Ergodic Rate) model. LATER accounts for random variability in reaction times by postulating that neural activity rates can vary randomly between one decision and the next. The model has been developed to account for reaction times in not only simple decision tasks, but also more advanced ones particularly in oculomotor neurophysiology, such as the anti-saccade task that is popular in clinical research for neurological conditions. This chapter discusses the history and evolution of the LATER model, and future applications.

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LATER Models of Reaction Times and Decisions in Neurophysiology

  • 章节

  • 发表日期：

    2025年

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  • Imran Noorani,
  • Andrew Anderson

摘要

Choosing between options in the face of uncertainty in the information presented from the outside world reflects a crucial function of the brain. A simple conceptual framework for understanding such decision-making is the LATER (Linear Approach to Threshold with Ergodic Rate) model. LATER accounts for random variability in reaction times by postulating that neural activity rates can vary randomly between one decision and the next. The model has been developed to account for reaction times in not only simple decision tasks, but also more advanced ones particularly in oculomotor neurophysiology, such as the anti-saccade task that is popular in clinical research for neurological conditions. This chapter discusses the history and evolution of the LATER model, and future applications.