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We're here to support YOUR research.

TDT has been pioneering neuroscience research tools since 1987. We are a company built on a legacy of innovation for and commitment to our customers.

Why choose TDT?

Our advantage

TDT neuroscience tools and software are versatile and scalable, so they support the current and future goals of your research. Labs stay productive over the years and find it easy to teach new members how to use the equipment, so you spend more time reaching grant benchmarks and publishing, and less time trying to make things work.

Tell us about your research or schedule a demo: you'll see the quality and design of our products, from a team that cares about your success.

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The TDT team

Support

World-class support

Our technical support engineers and application specialists have advanced degrees in biomedical engineering, and many have research experience in neuroscience and physiology. The people who work with you know our equipment and understand your research, and support is free for the life of your system.

Phone
+1 386-462-9622
Email
support@tdt.com
Hours
8:00 am - 5:00 pm Eastern, Monday - Friday
Support resources

Warranty

TDT products are backed by our five-year warranty, which includes parts and labor. Contact TDT to get an RMA number before returning any hardware.

5 yearsAll TDT System 3 hardware not listed below, parts and labor
2 yearsHeadstages, Headstage adapters, EC1/ES1 speakers, LUX LEDs, photosensors, power meter and bleach box
1 yearLUX fiber cables and cable kit, Custom manufactured hardware (parts and labor)
Manufacturer's warrantyItems TDT resells
Warranty details and RMA
5-year warranty

Published research

More than 7,000 peer-reviewed studies used TDT systems. The newest:

All publications →
Scientific Reports · 2026

Virus induced cochlear inflammation alters stria vascularis function and auditory development

Matthew D. Smith, Keiko Hirose, William J. Britt

Human cytomegalovirus (HCMV) is the most common viral infection acquired in utero and a leading cause of sensorineural hearing loss (SNHL). In previous studies utilizing a murine model of SNHL that follows congenital CMV infection (cCMV), virus-induced cochlear inflammation has been shown to result in SNHL that develops in the absence of histopathology in the sensory neuroepithelium but is associated with the dysregulation of a number of deafness related genes (DRG). In this study, virus-induced cochlear inflammation was shown to dysregulate the expression of multiple DRG that have been shown to contribute to ion and metabolite transport within stria vacularis (SV). In addition, cochlear inflammation in virus-infected mice resulted in the loss of barrier functions of the SV that have also been linked to SNHL. Decreased expression of these DRG in infected animals was associated with SNHL that was similar to that observed in genetically engineered murine models with deletion of these DRG. Together, these results argue that virus-induced inflammation can lead to dysregulation of host genes associated with barrier and ion transport function of the SV, thus providing further insight into potential mechanisms of SNHL that follow virus infections during early auditory development.

Read the paper → (Virus induced cochlear inflammation alters stria vascularis function and auditory development, opens in a new tab)
bioRxiv* · 2026

A biomimetic deep encoder for auditory restoration by cortical stimulation

Lamothe C, Verdier A, Caris C, … Bathellier B

Cochlear and auditory brainstem implants are the primary treatments for profound deafness. However, the inherently low resolution of electrical stimulation used by these devices limits information transfer to a small number of independent stimulation channels and results in perceptual difficulties. An alternative approach is to target the auditory cortex, a brain region large enough to accommodate hundreds of stimulation channels and whose stimulation evokes sound percepts. Although modern brain interfaces offer large channel counts and spatial resolution, developing encoding algorithms capable of accurately transmitting interpretable sound information remains challenging. Here we introduce Braincodec, a deep network that optimizes both sound information transmission and the alignment of stimulation patterns with the spatial, temporal, and high-level properties of the auditory cortex neural code. Braincodec operates online and requires only a few hundred channels to transmit sufficient information for the reconstruction of natural sounds with high fidelity, a performance inaccessible to cochlear implant encoders. Moreover, mice equipped with a Braincodec-driven auditory cortical prosthesis matched the accuracy of non-implanted mice in discriminating real sounds. Braincodec therefore enables the development of high-throughput cortical neuroprosthetics with the potential to overcome the limitations of current auditory implants and provides a generic framework applicable to other sensory modalities.

Read the paper → (A biomimetic deep encoder for auditory restoration by cortical stimulation, opens in a new tab)
Scientific Reports · 2026

Ultra-micro electrodes support low-current amplitude discrimination in intracortical microstimulation

Elizabeth T. Su, Vinayak Retheesh, Karthik Kumaravelu, … Kevin J. Otto

Abstract Restoring somatosensory feedback is essential for achieving natural, embodied control of prosthetic limbs. Intracortical microstimulation (ICMS) of the somatosensory cortex can provide artificial touch by activating cortical neurons directly. Here, we systematically investigate how electrode contact size influences amplitude discrimination performance during ICMS. Six rats were chronically implanted with custom multielectrode shanks in the somatosensory cortex. Over twelve weeks, behavioral just-noticeable differences (JNDs) were quantified across eight electrode diameters (5–50 µm) using an adaptive discrimination paradigm. Discrimination thresholds were significantly lower for 5 µm and 10 µm sites than for larger contacts because these electrodes operated at lower reference stimulation amplitudes within their established charge injection safety limits. Weber fractions remained stable across electrode sizes, demonstrating proportional scaling of perceptual sensitivity with stimulus intensity. We used a biophysically realistic modeling framework to identify the underlying neural correlates of ICMS-induced amplitude discrimination. Both the magnitude of neural responses (changes in the number of activated neurons and the total population spike count) and the population mean spike count contributed to perceptual discrimination. These findings indicate that ultra-microelectrodes enable ICMS at substantially lower reference amplitudes, producing lower absolute discrimination thresholds while preserving Weber-like proportional scaling. Ultra-microelectrodes therefore preserve established psychophysical scaling while supporting low-threshold stimulation within their safe charge injection limits, enabling high-density sensory neuroprostheses.

Read the paper → (Ultra-micro electrodes support low-current amplitude discrimination in intracortical microstimulation, opens in a new tab)

* Preprint: not yet peer reviewed.

“We make tools for people who study the brain.”

─ Tim Tucker, TDT President and Founder

The World’s Most Advanced Systems for Neurophysiology Research

TDT offers a complete line of modular and customizable systems and software for optical neuroscience, neurophysiology, behavioral neuroscience, and auditory research.

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Commitment to Innovative Product Development

From a simple audio stimulator or motorized commutator to a complete multichannel sensory and behavioral neurophysiology system for awake, freely-behaving subjects.

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From Design and Inception Through Manufacturing and Support

Giving you total control over your instrumentation is the core of our product design.

Your instrumentation is integral to your research, and the tools you choose should never limit you. Informed by a close relationship with our customers, what we do is vision fulfillment: an informed vision about the tools that work best for our customers, fulfilled by a company that understands what is needed to deliver reliable results.

In-House :: An Integrated Approach

Close Ties Between Every Department of Our Company

Our goal is to supply you with the highest quality and most up-to-date technology available at an affordable price. From development and component assembly to testing and systems integration, the TDT team takes care of everything.

This belief is exemplified by the integrated nature of our facility, which brings together our scientists, engineers, and manufacturing team all under one roof.

In-House :: Engineering

Reliability, Affordability, and Performance You Deserve

To meet the needs of our customers, we invest heavily in the most advanced manufacturing machinery and systems. Matching our advanced design and engineering with state-of-the-art production equipment allows us to consistently deliver the industry’s best research equipment.

In-House :: Manufacturing

Our Manufacturing Department is Only Steps Away

At Tucker-Davis Technologies, we don’t build our systems around off-the-shelf boards; we build complete systems from the ground up. And because we’re all in the same building, we’re able to streamline the entire product development process from concept to delivery. With immediate feedback from production staff, product improvements and upgrades also move forward rapidly.