Hazard versus history: Temporal preparation is driven by past experience

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human Factors

Background:

• The hazard function, representing the probability of an event occurring given it hasn't happened yet, is traditionally linked to temporal preparation in warned reaction time tasks.
• A common belief suggests that higher hazard rates drive faster responses, implying hazard directly influences temporal preparation.
• Alternative cognitive theories propose that temporal preparation relies on memory traces from prior timing experiences.

Purpose of the Study:

• To investigate whether temporal preparation is driven by the current hazard rate or by memory of past timing experiences.
• To differentiate between hazard-driven and memory-driven accounts of temporal preparation.
• To examine the influence of foreperiod distribution history on subsequent temporal preparation.

Main Methods:

• Three experiments were conducted using warned reaction time tasks.
• Participants were divided into groups, each exposed to different distributions of foreperiods (time between cue and target).
• A subsequent test phase involved all participants receiving the same uniform foreperiod distribution after explicit instruction.

Main Results:

• Clear transfer effects were observed across different experimental groups in the test phase.
• These transfer effects indicate that prior experience with specific foreperiod distributions influenced performance.
• Performance in the test phase was not solely determined by the current (uniform) hazard rate.

Conclusions:

• Temporal preparation is primarily driven by learned regularities and memory traces of past timing experiences.
• The findings challenge the traditional view that the current hazard function directly drives temporal preparation.
• Past experience, rather than immediate statistical properties of the cue-target interval, shapes anticipatory behavior.