Home › Biochemistry › Assaying Locomotor, Learning, and Memory Deficits in Drosophila Models of Neurodegeneration
Biochemistry JoVE (Open Access) Citable · DOI

Assaying Locomotor, Learning, and Memory Deficits in Drosophila Models of Neurodegeneration

DOI: 10.3791/2504-v
What you'll learn
  • ✓ Perform negative geotaxis assay to measure Drosophila climbing ability
  • ✓ Conduct aversive phototaxis suppression assay for learning and memory assessment
  • ✓ Prepare and acclimate flies for behavioral phenotyping protocols
  • ✓ Interpret locomotor and cognitive deficits in neurodegeneration models
Protocol

Behavior assays for measuring locomotor functions, learning, and memory abilities in Drosophila.

Difficulty
intermediate
Total time
~1–2 hours per genotype (including acclimation, assay setup, and data collection)
Model organism
Drosophila melanogaster

Steps

1
Prepare and acclimate Drosophila for behavioral assays

Collect and age flies according to experimental design, then allow acclimation to testing environment to minimize stress-related confounds.

▶ 01:19
2
Perform negative geotaxis climbing assay

Place flies in vertical tubes and measure climbing height over a defined time period to assess locomotor function and age-related decline.

▶ 01:50
3
Prepare apparatus for aversive phototaxis suppression assay

Assemble and calibrate light source, training chamber, and testing apparatus for associative learning and memory evaluation.

▶ 02:58
4
Execute aversive phototaxis suppression training and testing

Train flies with paired light and aversive stimulus, then test suppression of phototaxis preference to quantify learning and short- or long-term memory retention.

▶ 03:59
5
Interpret and compare behavioral phenotypes

Analyze locomotor and cognitive metrics across genotypes or conditions to identify neurodegeneration-associated deficits in climbing ability and memory.

▶ 06:07
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