Drosophila Torque Meter
Drosophila Torque Meter - Related Videos
17:31
Operant Learning of Drosophila at the Torque Meter
0 Views •
Cited by 25 •
2008
Measuring the yaw torque of tethered Drosophila with the torque meter allows the neuroscientist exquisite control of the stimulus situation of the experimental animal. Together with the unique genetic tools available in the fruit fly, this paradigm is used for a wide variety of neurobiological research.
08:18
Torque
0 Views •
2023
Source: Nicholas Timmons, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA The goal of this experiment is to understand the components of torque and to balance multiple torques in a system to achieve equilibrium. Much like how a force causes linear acceleration, torque is a force that causes a rotational acceleration. It is defined as the product of a force and the distance of the force from the axis of rotation. If...
01:10
Torque
0 Views •
2023
Torque is an important quantity for describing the dynamics of a rotating rigid body. We see the application of torque in many ways in the world, such as when pressing the accelerator in a car, which causes the engine to apply additional torque on the drivetrain. Here, we define torque and provide a framework to create an equation to calculate torque for a rigid body with fixed-axis rotation. Torque can be considered as the rotational counterpart to force. Since forces change the translational...
09:28
Using a pH Meter
0 Views •
2023
Source: Laboratory of Dr. Zhongqi He - United States Department of Agriculture Acids and bases are substances capable of donating protons (H+) and hydroxide ions (OH-), respectively. They are two extremes that describe chemicals. Mixing acids and bases can cancel out or neutralize their extreme effects. A substance that is neither acidic nor basic is neutral. The values of proton concentration ([H+]) for most solutions are inconveniently small and difficult to compare so that a more practical...
11:41
Magnetic Tweezers for the Measurement of Twist and Torque
0 Views •
Cited by 16 •
2014
Magnetic tweezers, a powerful single-molecule manipulation technique, can be adapted for the direct measurements of the twist (using a configuration called freely-orbiting magnetic tweezers) and torque (using a configuration termed magnetic torque tweezers) in biological macromolecules. Guidelines for performing such measurements are given, including applications to the study of DNA and associated nucleo-protein filaments.
FAQs
A tethered fly’s attempted turning changes the force applied to the sensor, and that change is recorded as yaw torque. Mechanical or optical detection converts the movement-related force into a measurable signal. Because the readout reflects motor output directly, researchers can examine how sensory input is transformed into coordinated wing and body movements.
Yaw torque captures the rotational component of a fly’s motor response, making it useful for analyzing turning-related behavior during controlled stimulation. Changes in this signal show how the animal adjusts its output when visual or other sensory information changes. This provides a focused measure for studying flight control and sensorimotor integration.
The assay links neural processing to a quantitative motor outcome rather than relying only on a general behavioral observation. Researchers can relate sensory stimulation and circuit function to the strength of the fly’s rotational response. This connection helps investigate how neuronal activity is expressed through coordinated wing and body movements.
A typical assay secures the fly in a tethered configuration and connects it to a sensitive mechanical or optical sensor. Researchers then present controlled visual or other sensory stimuli while recording changes in yaw torque. The resulting measurements provide a standardized way to examine motor responses under defined experimental conditions.
Stimuli serve as controlled inputs that challenge the fly’s sensorimotor system while the instrument records the resulting torque response. By comparing the measured changes with the presented sensory conditions, researchers can assess how information is converted into motor output. This design supports analysis of behavioral responses during flight-control studies.
The instrument supports research on flight control, locomotion, and sensorimotor integration, while also enabling studies of genetic effects on behavior. Its quantitative output allows investigators to evaluate how differences in neural circuitry or genetic background relate to motor performance. In biology, this makes the assay useful for connecting mechanism with measurable behavior.