Performance Index
Proportion of flies choosing the non-conditioned odor minus those choosing the conditioned odor, normalized to total
ConductVision · Behavioral Analysis
Drosophila Olfactory Learning
Automated scoring of associative odor–shock conditioning and memory retention.
DrosophilaLearning & MemoryAuto Export
ConductVision / Drosophila Olfactory Learning
Recording / Trial 3fly tracked
PI0.72
Learning Idx0.58
24h Retention0.35
Key Parameters
Metrics automatically extracted by ConductVision.
Learning Index
Difference between trained and naive odor avoidance scores, isolating associative learning from innate odor bias
Memory Retention
Performance index measured at 1h (STM), 3h (MTM), and 24h (LTM) post-training to map memory phase kinetics
Avoidance Score
Per-fly displacement away from the conditioned odor arm, enabling individual-level analysis of learning phenotypes
Odor Discrimination
Choice accuracy between two olfactory stimuli at matched concentration, controlling for sensory deficits vs. learning deficits
Naive Odor Response
Baseline odor preference before conditioning, essential for separating sensory from cognitive phenotypes
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Acquisition Rate
Performance index improvement across successive training trials, measuring the speed of odor–shock association formation
Extinction Rate
Decline in conditioned avoidance after repeated unreinforced odor exposures, indexing memory flexibility
Reversal Learning
Ability to reverse odor–shock contingency after CS+/CS− swap, a measure of cognitive flexibility and inhibitory control
Choice Latency
Time from T-maze release to arm entry, reflecting decision speed and motivational state during odor choice
What is Drosophila Olfactory Learning?
The Drosophila olfactory conditioning paradigm (T-maze or Y-maze odor choice) pairs an odor with electric shock. After training, flies avoid the shock-associated odor — a robust readout of associative learning and memory. Short-term, middle-term, and long-term memory can be assessed by varying the training-to-test interval.
ConductVision tracks fly distribution in choice apparatus arms, automatically computing performance and learning indices. The software supports high-throughput genetic screens of memory mutants and pharmacological studies of cognitive enhancers.
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