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Updated: May 10, 2026
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Profiling DNA Replication Timing Using Zebrafish as an In Vivo Model System
Published on: April 30, 2018
Rapid, accurate time estimation in zebrafish (Danio rerio).
D T Cerutti1, J Jozefowiez, J E R Staddon
1California State University - East Bay, United States.
Behavioural Processes
|June 26, 2013
Summary
Zebrafish exhibit proportional and scalar timing in a Pavlovian conditioning task, accurately tracking food delays. This research provides a foundation for investigating the genetics of interval timing in zebrafish.
Area of Science:
- Behavioral neuroscience
- Animal models
- Chronobiology
Background:
- Understanding interval timing is crucial for cognitive neuroscience.
- Zebrafish are increasingly used as a model organism due to their genetic tractability.
Purpose of the Study:
- To investigate interval timing in zebrafish using a Pavlovian delayed conditioning paradigm.
- To determine if zebrafish exhibit proportional and scalar timing properties.
Main Methods:
- Appetitive Pavlovian delayed conditioning task with zebrafish.
- Varying intertrial intervals and food delays (T/2).
- Measurement of pole-biting response latencies from conditioned stimulus (CS) onset.
Main Results:
- Response latencies were a linear function of food delay, indicating proportional timing.
- Standard deviation of latencies was proportional to latency, indicating scalar timing.
- Zebrafish adapted response latencies to changes in food delays.
Conclusions:
- Zebrafish demonstrate sophisticated interval timing capabilities similar to other species.
- The findings support the use of zebrafish for genetic studies of interval timing.
- This opens avenues for exploring the genetic basis of temporal cognition.
