Karen L Hibbard

Optogenetic Control of Activity in Descending Tdc2+ Neurons Modulates Motor Program Bias in the Drosophila Larval Locomotor System

This study uses optogenetics and calcium imaging to show that tdc2+ neurons modulate motor program bias in Drosophila larvae by influencing fictive motor activity.

Driver lines for studying associative learning in Drosophila

The paper introduces a new collection of over 800 split-GAL4 and split-LexA drivers for studying associative learning in Drosophila, covering 300 cell types and enabling functional analysis of neural circuits.

A split-GAL4 driver line resource for Drosophila neuron types

The paper describes a collection of split-GAL4 driver lines for targeting specific neuron types in Drosophila, enabling functional and molecular studies.

Steering From the Rear: Coordination of Central Pattern Generators Underlying Navigation by Ascending Interneurons

This study investigates how ascending interneurons in Drosophila larvae coordinate motor programs for navigation by modulating central pattern generators.

Reward expectations direct learning and drive operant matching in Drosophila

This study identifies synaptic plasticity mechanisms in Drosophila that incorporate reward expectations to drive operant matching behavior.

Neural circuit mechanisms for transforming learned olfactory valences into wind-oriented movement

The paper identifies a neuronal circuit in Drosophila that transforms learned olfactory valences into wind-oriented movement by integrating inputs from memory compartments.

Hierarchical architecture of dopaminergic circuits enables second-order conditioning in Drosophila

The paper identifies a feedforward circuit between dopamine subsystems in Drosophila that is essential for second-order conditioning, mediated by a key interneuron.

Genetic reagents for making split-GAL4 lines in Drosophila

The paper describes over 2,800 transgenic lines for the split-GAL4 intersectional method to achieve precise cell-type-specific gene expression in Drosophila.