Table 1.

Summary of desired performance criteria for dual-port detector

Desired Characteristics	Rinberg et al. (2012)	Isett et al. (2018)	Current Design
Detection resolution: >14 Hz for licking; >1 kHz for onset detection and control signals	1 kHz	200 Hz (estimated)	800 kHz
Signal noise: maximum 10%	N/A	N/A	<1%
Detection time: max 70 ms	<1 ms	5 ms (estimated)	<1 μs
Dimensions: <1 cm wide (mouse snout)	N/A	23 × 19 × 22 mm3 (estimated)	23 × 20 × 22 mm3
Lick port size: <10 mm wide (mouse tongue)	N/A	6 mm	8 mm
Simple and robust amplification/filtering circuit	>50 components	7 components	5 components

Estimated values are based on provided measurements or pictured data. For example, Isett (2018) describes a single-port detector; however, its dimensions as a dual-port detector in our configuration were estimated. The lick detector of (Resulaj and Rinberg 2015; Rinberg 2012) describes a filtering circuit but not dimensions of a physical sensor; thus its dimensions are not available. N/A, not applicable.