Evolocus LLC provides equipment for biomedical research, animal behavior and electrophysiology. The main part of the products is represented by wireless fully autonomous animal attached system for recording electrophysiological data in freely-moving animals. These devices are called Neurologgers.

Evolocus Brochure Neurologger with
3D Animal Tracking

Three generations of Neurologgers are actively supported. The set of devices covers a very broad area of research. Acquired and stored data comprises multi-channel neuronal activity, vocalization (including ultrasonic), LFPs, long-lasting EEG, ECG, EOG and EMG.

The distinctive feature of the devices is their extremely small size and weight (about 1-2 g). This allows researchers to mount loggers directly at the head of a laboratory mouse (25 g body weight), or at the back of a zebra finch (small laboratory songbird with 14 g body weight). It also fits perfectly to larger animals such as rats and monkeys.

The built-in 3-D accelerometer, 3-D gyroscope and 3-D magnetic compass can help to track animal behavior. Precise synchronization of the loggers with the external equipment is provided by Neurologger Synchronizer via the infrared link. The latest versions are complemented with Bluetooth interface for remote configuring and data access.

Local data logging is an excellent alternative to classical radio-telemetry. Having smaller power consumption, it outperforms it in signal quality: no data losses and signal quality degradation during transmission, no penetration of the artifacts from the radio transmitter to high-impedance neuronal electrodes.

To see our equipment, please follow to Products

Recent publications

Ba W, Nollet M, Yin C, Yu X, Wong S, Miao A, Beckwith EJ, Harding EC, Ma Y, Yustos R, Vyssotski AL, Wisden W, Franks NP. (2024) A REM-active basal ganglia circuit that regulates anxiety. Curr Biol. 2024 Jun 25

Chen Z, Han Y, Ma Z, Wang X, Xu S, Tang Y, Vyssotski AL, Si B, Zhan Y. (2024) A prefrontal-thalamic circuit encodes social information for social recognition. Nat Commun. 2024 Feb 3

Zaid E, Rainsford FW, Johnsson RD, Valcu M, Vyssotski AL, Meerlo P, Lesku JA. (2024) Semelparous marsupials reduce sleep for sex. Curr Biol. 2024, Jan 11

Sotelo MI, Markunas C, Kudlak T, Kohtz C, Vyssotski AL, Rothschild G, Eban-Rothschild A. (2023) Neurophysiological and behavioral synchronization in group-living and sleeping mice. Curr Biol. 2023, Dec 14

Tossell K, Yu X, Giannos P, Anuncibay Soto B, Nollet M, Yustos R, Miracca G, Vicente M, Miao A, Hsieh B, Ma Y, Vyssotski AL, Constandinou T, Franks NP, Wisden W. (2023) Somatostatin neurons in prefrontal cortex initiate sleep-preparatory behavior and sleep via the preoptic and lateral hypothalamus. Nat Neurosci. 2023, Sep 21

Kendall-Bar JM, Williams TM, Mukherji R, Lozano DA, Pitman JK, Holser RR, Keates T, Beltran RS, Robinson PW, Crocker DE, Adachi T, Lyamin OI, Vyssotski AL, Costa DP.(2023) Brain activity of diving seals reveals short sleep cycles at depth. Science 2023, Apr 21

Yu X, Zhao G, Wang D, Wang S, Li R, Li A, Wang H, Nollet M, Chun YY, Zhao T, Yustos R, Li H, Zhao J, Li J, Cai M, Vyssotski AL, Li Y, Dong H, Franks NP, Wisden W. (2022) A specific circuit in the midbrain detects stress and induces restorative sleep. Science 2022, Jul 1

Aulsebrook AE, Connelly F, Johnsson RD, Jones TM, Mulder RA, Hall ML, Vyssotski AL, Lesku JA. (2020) White and Amber Light at Night Disrupt Sleep Physiology in Birds. Curr Biol. 2020, Jul 17

van Hasselt SJ, Rusche M, Vyssotski AL, Verhulst S, Rattenborg NC, Meerlo P. (2020) Sleep Time in the European Starling Is Strongly Affected by Night Length and Moon Phase. Curr Biol. 2020, Mar 17

Ma Y, Miracca G, Yu X, Harding EC, Miao A, Yustos R, Vyssotski AL, Franks NP, Wisden W. (2019) Galanin Neurons Unite Sleep Homeostasis and α2-Adrenergic Sedation. Curr Biol. 2019, Oct 7

Yu X, Li W, Ma Y, Tossell K, Harris JJ, Harding EC, Ba W, Miracca G, Wang D, Li L, Guo J, Chen M, Li Y, Yustos R, Vyssotski AL, Burdakov D, Yang Q, Dong H, Franks NP, Wisden W. (2018) GABA and glutamate neurons in the VTA regulate sleep and wakefulness. Nat Neurosci. 2018, Dec 17

Harding EC, Yu X, Miao A, Andrews N, Ma Y, Ye Z, Lignos L, Miracca G, Ba W, Yustos R,Vyssotski AL, Wisden W, Franks NP (2018) A neuronal hub binding sleep initiation and body cooling in response to a warm external stimulus. Curr Biol. 2018, July 23

Lyamin OI, Kosenko PO, Korneva SM, Vyssotski AL, Mukhametov LM, Siegel JM. (2018) Fur Seals Suppress REM Sleep for Very Long Periods without Subsequent Rebound. Curr Biol. 2018, June 18

Gelegen C, Miracca G, Ran MZ, Harding EC, Ye Z, Yu X, Tossel K, Houston CM, Yustos R, Hawkins ED, Vyssotski AL, Dong HL, Wisden W, and Franks N. (2018) Excitatory pathways from the lateral habenula enable propofor-induced sedation. Curr Biol. 2018, Feb 19

Nair J, Klaassen AL, Arato J, Vyssotski AL, Harvey M, Rainer G. (2018) Basal forebrain contributes to default mode network regulation. Proc Natl Acad Sci U S A. 2018 Jan 23

Franklin TB, Silva BA, Perova Z, Marrone L, Masferrer ME, Zhan Y, Kaplan A, Greetham L, Verrechia V, Halman A, Pagella S, Vyssotski AL, Illarionova A, Grinevich V, Branco T, Gross CT. (2017) Prefrontal cortical control of a brainstem social behavior circuit. Nat Neurosci. 2017 Jan 9

Vyssotski AL, Stepien AE, Keller GB, Hahnloser RH. (2016) A neural code that is isometric to vocal output and correlates with its sensory consequences. PLoS Biol. 2016 Oct 10.

Rattenborg NC, Voirin B, Cruz SM, Tisdale R, Dell'Omo G, Lipp HP, Wikelski M, Vyssotski AL. (2016) Evidence that birds sleep in mid-flight. Nat Commun. 2016 Aug 3.

Upcoming exhibition

Neuroscience 2024
Booth #1683
October 5 - 9, 2024
Chicago, IL

2022 update:
Neurologger 2A/2B with pulse oximeter for non-invasive recording of heart rate and blood oxygenation (SpO2)

2021 update:
Neurologger 3 can have 96, 128, 192 or 256 LFP/EEG channels

2019 products:
Neurologger 3 with 64 neuronal
channels for mice & larger animals

Neurologger 2A/2B with 3D animal
head orientation, altitude, ambient
temperature, and remote start/stop

2018 products:
Ultralight wireless
optogenetic stimulators

2017 Best of Tarrytown Award

Evolocus receives 2017 Best of Tarrytown Award. Press Release

10-Years Anniversary (2017)

Past exhibitions

Neuroscience 2022
Booth #919
November 12 - 16, 2022
San Diego, CA

See Neuroscience 2022 booth

Neuroscience 2019
Booth #1764
October 20 - 23, 2019
Chicago, IL

See Neuroscience 2019 booth

Neuroscience 2018
Booth #534
November 3 - 7, 2018
San Diego, CA

See Neuroscience 2018 booth

Neuroscience 2017
Booth #2207
November 12 - 15, 2017
Washington, DC
See Neuroscience 2017 booth
See advertisement

Neuroscience 2016
Booth #3711
November 13 - 16, 2016
San Diego, CA
See Neuroscience 2016 booth
See advertisement

The Journal of Experimental Neuroevolution
Published by Evolocus LLC, ISSN 2164-6481

Vyssotski D.L. Hybrid vigour and hybrid dysgenesis. Evolocus 1, 31-36 (2019). [SI]

Neurologger 3 and its history. Evolocus 1, I-VI (2016). [Supplementary Information]

Vyssotski D.L. Nomogenesis and the logic of chance. Evolocus 1, 25-30 (2016). [SI]

Vyssotski D.L. Transgenerational epigenetic compensation and natural selection. Evolocus 1, 19-24 (2014).

Vyssotski D.L. Transgenerational epigenetic compensation and sexual dimorphism. Evolocus 1, 13-18 (2013). [SI]

Vyssotski D.L. Transgenerational epigenetic compensation in evolution. Evolocus 1, 7-12 (2012). [SI]

Vyssotski D.L. Transgenerational epigenetic compensation. Evolocus 1, 1-6 (2011).

Vyssotski D.L. Transgenerational Epigenetic Compensation of Paternal Drug Treatment. Supporting Online Material (Evolocus, New York, 2010). [Erratum]