<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31307736</termId><termName>sound stimulators</termName><termType>PT</termType><termNote><![CDATA[ Devices used in noise reaction experiments in which a ball is released from an adjustable height and falls upon a rubber block and thence either makes or breaks a contact that generates a sound. ]]></termNote><termCreatedDate>2026-03-30 20:22:49</termCreatedDate><relation><relationType>UF</relationType><termId>31307737</termId><termName>sound stimulator</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31307738</termId><termName>stimulators, sound</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31299038</termId><termName>sound devices</termName><termType>PT</termType></relation></term>  </Zthes>