These findings support the adequacy of the domestic cat as a model system for future investigations of the auditory processes that underlie loudness perception, recruitment, and hearing aid design.Īlthough loudness is related to the physical characteristics of sounds, especially their energy, it is a psychological attribute that is strongly shaped by how the energy is transduced, filtered, and integrated over time (Plack and Carlyon 1995). Vowels produced more recruitment than tones, and the effect was exacerbated by the selective amplification of formant structure. The effects of speech spectra and amplification on recruitment were explored by measuring the growth of loudness for natural and amplified vowels before and after sound exposure. Linear hearing aid amplification is known to improve speech intelligibility but also exacerbate recruitment in impaired listeners. Observed recruitment effects were similar in magnitude to those that have been reported in hearing-impaired humans. At the completion of normal baseline measures, the cats were exposed to intense sound to investigate the behavioral correlates of loudness recruitment, the abnormally rapid growth of loudness that is commonly associated with hearing loss. The resulting equal latency contours reproduced well-known features of human equal loudness contours. The psychophysical approach was based on the assumption that sounds of equal loudness elicit responses of equal latency. This study used a reaction time task to characterize loudness perception in six behaviorally trained cats. At present, there are no published descriptions of loudness perception in this species. The game board constantly shows your total game time, game level, and the amount of time left for the current level.The domestic cat is the primary physiological model of loudness coding and recruitment. Complete all 56 game levels and you will have beaten Meow Match.Ī total of 69 different meowing sounds are available for use in each of the game levels. Go from Level 1 with only two matches and plenty of time to make them to Level 56 with 15 matches and barely enough time. Each level will increase in difficulty with either an increase in the number of game pieces or reduced time to make each match or a combination of both. Play against the clock through the 56 levels of the game. But use these features with caution since using them will negatively affect your finale score. Hints and the ability to deselect a previously selected game piece are available to use if you get stuck. Each game randomly selects an appropriate number to use so no game is likely to be repeated. Select from 1 of the 4 difficulty levels available:Ī total of 69 different meowing sounds are available for use in the game. Play at your own pace since time is not a factor in calculating your score. Make mistakes or use the hint and deselection features of the game and your score will suffer. Match the meows in as few attempts as possible and get a great score. If you would rather not play under the constant threat of time running out there is Meow Match Classic where you can take as much time as you like to complete the selected game difficulty level. Play against the clock in a fast pace game of Meow Match Speed where quick thinking, an excellent memory, and fast fingers will be needed to make it through all 56 levels and beat Meow Match. DetailsMeow Match puts a humorous twist on the traditional card matching game but instead of matching card faces you will be matching meowing sounds.
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