Dataset for: "Age-related reduction of amplitude modulation frequency selectivity"

<p dir="ltr">The dataset contains data for 11 young and 10 older listeners with normal hearing (young and older NH listeners).<br>The Readme file provides a description of the dataset's content, and of the related article.</p><p><br></p><p dir="ltr">The data collected were:</p><ul><li>Population data: age, tested ear, and reverse digit span score</li><li>Audiograms</li><li>Hearing threshold at the test frequency</li><li>Amplitude modulation detection thresholds with short stimuli duration</li><li>Amplitude modulation detection thresholds with extended stimuli duration</li><li>Masked-threshold patterns (MTP; short stimuli duration)</li><li>Masked-threshold patterns (MTP; extended stimuli duration)</li></ul><p dir="ltr"><b><u>Population Data</u></b><br>Dataset giving the population information for the 21 participants (<i>tp</i>), split into young NH and older NH (<i>group</i>), tested in the study. The data summarizes the participants' <i>age</i><i>,</i> and tested ear (<i>ear</i>), as well as their Reverse Digit Span score (<i>rds_score</i>). The age is given in years, and the reverse digit span score is given on a normalized scale from 0 to 1.</p><p><br></p><p dir="ltr"><b><u>Audiogram</u></b><br>Audiometric thresholds (<i>thresh</i>) were collected for 21 participants (<i>tp</i>), split into young NH and older NH (<i>group</i>), at frequencies (<i>freq</i>) of 0.125, 0.25, 0.5, 1, 2, 3, 4, 6, and 8 kHz. The thresholds are given in dB Hearing Level (HL).</p><p><br></p><p dir="ltr"><b><u>Hearing Threshold</u></b><br>Hearing thresholds collected at the test frequency (2.8 kHz) for all listeners.<br>21 participants (<i>tp</i>), split into young NH and older NH (<i>group</i>) were tested. The thresholds (<i>thresh</i>) were measured across at least 3 repetitions (<i>repetition</i>) for each listener. If the standard error across repetitions exceeded 2 dB, additional repetitions were added until that limit was met. The thresholds are given in dB Sound Pressure Level (SPL).</p><p><br></p><p dir="ltr"><b><u>AM Detection</u></b><br>Dataset for the amplitude modulation detection thresholds collected with a short stimulus duration (0.6 s).<br>21 participants (<i>tp</i>), split into young NH and older NH (<i>group</i>), were tested. Detection thresholds (<i>thresh</i>) were collected at four different target modulation frequencies (<i>fmod</i>) of 4, 16, 64, and 128 Hz. At least three repetitions (<i>repetition</i>) were collected for each condition. If the standard error across repetitions exceeded 2 dB, additional repetitions were added until that limit was met. In case a threshold was not obtainable in one of the repetitions, the <i>thresh</i> entry specifies "NaN". The thresholds are given for the target modulation depth on a dB scale: M = 20log₁₀(m), where m is the modulation depth on a linear scale.</p><p><br></p><p dir="ltr"><b><u>AM Detection Extended</u></b><br>Dataset for the amplitude modulation detection thresholds collected with an extended stimulus duration (1.1 s).<br>21 participants (<i>tp</i>), split into young NH and older NH (<i>group</i>), were tested. Detection thresholds (<i>thresh</i>) were collected at a target modulation frequency (<i>fmod</i>) of 4 Hz. At least three repetitions (<i>repetition</i>) were collected for each condition. If the standard error across repetitions exceeded 2 dB, additional repetitions were added until that limit was met. In case a threshold was not obtainable in one of the repetitions, the <i>thresh</i> entry specifies "NaN". The thresholds are given for the target modulation depth on a dB scale: M = 20log₁₀(m), where m is the modulation depth on a linear scale.</p><p><br></p><p dir="ltr"><b><u>Masked-Threshold Patterns (MTPs)</u></b><br>Dataset for the masked-threshold patterns (MTPs) collected with a short stimulus duration (0.6 s).<br>21 participants (<i>tp</i>), split into young NH and older NH (<i>group</i>), were tested. Masked thresholds (<i>thresh</i>) were collected at four different target modulation frequencies (<i>fmod</i>) of 4, 16, 64, and 128 Hz, and five to seven different masker-modulation center frequencies (given as octaves relative to the target modulation frequency, <i>mask_oct</i>) at -5, -4, -2, -4/3, -2/3, 0, +2/3, +4/3, and +2 octaves. At least three repetitions (<i>repetition</i>) were collected for each condition. If the standard error across repetitions exceeded 2 dB, additional repetitions were added until that limit was met. In case a threshold was not obtainable in one of the repetitions, the <i>thresh</i> entry specifies "NaN". The thresholds are given for the target modulation depth on a dB scale: M = 20log₁₀(m), where m is the modulation depth on a linear scale.</p><p><br></p><p dir="ltr"><b><u>Masked-Threshold Patterns </u></b><b><u>(MTPs) </u></b><b><u>Extended</u></b><br>Dataset for the masked-threshold patterns (MTPs) collected with an extended stimulus duration (1.1 s).<br>21 participants (<i>tp</i>), split into young NH and older NH (<i>group</i>), were tested. Masked thresholds (<i>thresh</i>) were collected at a target modulation frequency (<i>fmod</i>) of 4 Hz, and seven different masker-modulation center frequencies (given as octaves relative to the target modulation frequency, <i>mask_oct</i>) ranging from -2 to +2 octaves, in steps of 2/3. At least three repetitions (<i>repetition</i>) were collected for each condition. If the standard error across repetitions exceeded 2 dB, additional repetitions were added until that limit was met. In case a threshold was not obtainable in one of the repetitions, the <i>thresh</i> entry specifies "NaN". The thresholds are given for the target modulation depth on a dB scale: M = 20log₁₀(m), where m is the modulation depth on a linear scale.</p><p><br></p><p dir="ltr"><b><i><u>Ethical statement</u></i></b><br>All listeners were financially compensated for their time and gave written informed consent. Ethical approval for the study was provided by the Science-Ethics Committee for the Capital Region of Denmark (reference H-16036391).</p><p><br></p><p dir="ltr"><b><i><u>Acknowledgments</u></i></b><br>The authors thank Borgný Súsonnudóttir Hansen for her contribution to the data collection, and Jens Hjortkjær and Jonatan Märcher-Rørsted for kindly providing their implementation of the reverse digit span test.</p>