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Delayed alternation in honeybees (Apis mellifera)
P A Couvillon1, T P Ferreira, M E Bitterman
1Békésy Laboratory of Neurobiology, University of Hawaii, Honolulu 96822, USA.
Summary
Honeybees (Apis mellifera) demonstrated learned control using short-term memory. Bees successfully learned to either repeat or change their choice based on recent rewards, showing cognitive flexibility.
Area of Science:
- Animal Cognition
- Behavioral Ecology
- Neuroethology
Background:
- Previous studies failed to demonstrate learned control of honeybee performance by short-term memory.
- Understanding insect learning mechanisms is crucial for comparative cognition studies.
Purpose of the Study:
- To investigate learned control of honeybee (Apis mellifera) performance using an improved training technique.
- To determine if honeybees utilize short-term memory for task-specific choices.
Main Methods:
- Honeybees were trained to choose between two colors based on a sample.
- Tasks involved either perseveration (choosing the same color as the sample) or alternation (choosing a different color).
- An improved training technique was employed to assess learned control.
Main Results:
- Honeybees successfully learned to perform both perseveration and alternation tasks.
- The equal difficulty of both tasks suggests the sample's primary role was discriminative, not associative.
- Bees remembered and appropriately used information about the immediately preceding reward experience on each trial.
Conclusions:
- Honeybees exhibit learned control of performance mediated by short-term memory.
- These findings suggest fundamental similarities in learning processes between vertebrates and honeybees.
- The study extends the understanding of cognitive abilities in insects.