automated behavioral classification

classifications of
spontaneous behavior, assigned
by human investigators
and machine learning algorithms

neural circuit for handedness

neural circuit elements
(PB-FB-No projection neurons)
regulating behavioral diversity

phototactic choice histories

individual flies display
divergent light preferences
over time; color indicates
statistical significance

leg and fly motion

fictive motion of a fly
running on a ball
in the LegTracker
and the x- and y- coordinates
of its legs, over time

evolutionary phase space

predicted optimal
evolutionary strategies
underlying behavioral diversity,
varying across climate
and geography

behavioral ethograms

a visual representation
of the Markov transition rates
between various modes of
spontaneous fly behavior -
determined by the LegTracker

variation across species

the white clover weevil and
three Drosophila species
vary across strain and species
in how much phototactic
personality they have

effect of weather on behavior

predicted fly population dynamics
and phototactic behavior dynamics
as influenced by real world
weather conditions from 2008

exploration metric

schematic of a metric
to characterize spontaneous
exploration of a circular arena

GABAergic circuitry

GABAergic neurons in the
fan-shaped body and
ellipsoid body,
densely packed neural circuits
mediating locomotor decision-making

injury and gait

leg motion transition matrices
and gait schematics
before (top) and after (bottom)
amputation of a fly's fore leg

injury and exploration

exploratory paths,
segmented and registered,
before (blue) amputation of a leg,
immediately after (red), and
after a few recovery days (cyan)

leg proprioceptive organ

green fluorescent protein
expressed in the
femur chordotonal organ,
a sensory structure encoding
proprioceptive feedback



an instrument for
recording the position
of all 6 of a fly's legs,
in real time, at 80Hz


coordinates 32 modules
to autonomously measure
the light preference
of individual flies,
many times each

FlyVac Module

a behavioral T-maze
built into an circuit board,
uses infrared beams to
detect when a individual fly
chooses to go toward or away
from a light source


measures the resting
shade vs. light
light preference of
individual flies,
30 at a time

Y-maze array

measures locomotor handedness
and exploratory activity
of individual flies,
120 at a time


gait recovery after injury

stages of exploratory
walking behavior following injury
and the genes required
to transition between these stages

fly life history

basic fly life history:
birth as an egg
adulthood and egg-laying
various ways of dying

spatial decision-making circuit

a model of an azimuthal
decision-making circuit
in the central complex
of the fly brain

origin of phototactic personality

developmental timing
and genetic regulators
of phototactic personality

neurons regulating phototaxis

neuronal elements implicated
in the control of the
polarity, plasticity and variability
of phototactic responses