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

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.<br>The data collected were:Population data: age, tested ear, and reverse digit span scoreAudiogramsHearing threshold at the test frequencyAmplitude modulation detection thresholds with short stimuli durationAmplitude modulation detection thresholds with extended stimuli durationMasked-threshold patterns (MTP; short stimuli duration)Masked-threshold patterns (MTP; extended stimuli duration)<b>Population Data</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.<br><b>Audiogram</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).<br><b>Hearing Threshold</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).<br><b>AM Detection</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.<br><b>AM Detection Extended</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.<br><b>Masked-Threshold Patterns (MTPs)</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.<br><b>Masked-Threshold Patterns </b><b>(MTPs) </b><b>Extended</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.<br><b><i>Ethical statement</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).<br><b><i>Acknowledgments</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.

本数据集包含21名听力正常的青年与老年被试的数据，其中青年听力正常听众（young NH listeners）11名，老年听力正常听众10名。<br>Readme文件包含数据集内容及相关研究论文的说明。<br>本次采集的数据包括：人口统计学数据、听力图、测试频率下的听阈、短刺激时长下的调幅检测阈值、长刺激时长下的调幅检测阈值、掩蔽阈值模式（Masked-threshold patterns, MTP；短刺激时长）、掩蔽阈值模式（MTP；长刺激时长）。<br><b>人口统计学数据</b><br>本数据集收录了本研究中21名被试（<i>tp</i>）的人口学信息，按青年听力正常组与老年听力正常组（<i>group</i>）划分。数据汇总了被试的年龄（<i>age</i>，单位为年）、测试耳（<i>ear</i>）以及反向数字广度得分（<i>rds_score</i>，该得分采用0至1的标准化量表计分）。<br><b>听力图</b><br>为21名被试（<i>tp</i>，按青年听力正常组与老年听力正常组<i>group</i>划分）采集了各频率下的听阈阈值（<i>thresh</i>），测试频率包括0.125、0.25、0.5、1、2、3、4、6及8 kHz，阈值以分贝听力级（dB Hearing Level, HL）为单位。<br><b>听阈</b><br>为所有被试采集了测试频率（2.8 kHz）下的听阈。本研究共测试21名被试（<i>tp</i>，按青年听力正常组与老年听力正常组<i>group</i>划分），每名被试的听阈（<i>thresh</i>）至少重复测量3次（<i>repetition</i>）。若重复测量的标准误超过2 dB，则追加测量次数直至满足该限制。听阈以分贝声压级（dB Sound Pressure Level, SPL）为单位。<br><b>短刺激时长调幅检测</b><br>本数据集对应短刺激时长（0.6 s）下采集的调幅检测阈值数据。共测试21名被试（<i>tp</i>，按青年听力正常组与老年听力正常组<i>group</i>划分），在4种目标调制频率（<i>fmod</i>：4、16、64及128 Hz）下采集检测阈值（<i>thresh</i>），每种条件至少重复测量3次（<i>repetition</i>）。若重复测量的标准误超过2 dB，则追加测量次数直至满足该限制。若某次重复测量未获得有效阈值，则<i>thresh</i>字段标注为"NaN"。阈值以分贝尺度的目标调制深度M表示：M = 20log₁₀(m)，其中m为线性尺度下的调制深度。<br><b>长刺激时长调幅检测</b><br>本数据集对应长刺激时长（1.1 s）下采集的调幅检测阈值数据。共测试21名被试（<i>tp</i>，按青年听力正常组与老年听力正常组<i>group</i>划分），仅在目标调制频率（<i>fmod</i>）4 Hz下采集检测阈值（<i>thresh</i>），每种条件至少重复测量3次（<i>repetition</i>）。若重复测量的标准误超过2 dB，则追加测量次数直至满足该限制。若某次重复测量未获得有效阈值，则<i>thresh</i>字段标注为"NaN"。阈值以分贝尺度的目标调制深度M表示：M = 20log₁₀(m)，其中m为线性尺度下的调制深度。<br><b>短刺激时长掩蔽阈值模式（MTPs）</b><br>本数据集对应短刺激时长（0.6 s）下采集的掩蔽阈值模式（Masked-threshold patterns, MTPs）数据。共测试21名被试（<i>tp</i>，按青年听力正常组与老年听力正常组<i>group</i>划分），在4种目标调制频率（<i>fmod</i>：4、16、64及128 Hz）以及5至7种不同的掩蔽调制中心频率（以相对于目标调制频率的倍频程表示，记为<i>mask_oct</i>，取值为-5、-4、-2、-4/3、-2/3、0、+2/3、+4/3及+2倍频程）下采集掩蔽阈值（<i>thresh</i>）。每种条件至少重复测量3次（<i>repetition</i>）。若重复测量的标准误超过2 dB，则追加测量次数直至满足该限制。若某次重复测量未获得有效阈值，则<i>thresh</i>字段标注为"NaN"。阈值以分贝尺度的目标调制深度M表示：M = 20log₁₀(m)，其中m为线性尺度下的调制深度。<br><b>长刺激时长掩蔽阈值模式（MTPs）</b><br>本数据集对应长刺激时长（1.1 s）下采集的掩蔽阈值模式（MTPs）数据。共测试21名被试（<i>tp</i>，按青年听力正常组与老年听力正常组<i>group</i>划分），在目标调制频率（<i>fmod</i>）4 Hz以及7种不同的掩蔽调制中心频率（以相对于目标调制频率的倍频程表示，记为<i>mask_oct</i>，取值范围为-2至+2倍频程，步长为2/3）下采集掩蔽阈值（<i>thresh</i>）。每种条件至少重复测量3次（<i>repetition</i>）。若重复测量的标准误超过2 dB，则追加测量次数直至满足该限制。若某次重复测量未获得有效阈值，则<i>thresh</i>字段标注为"NaN"。阈值以分贝尺度的目标调制深度M表示：M = 20log₁₀(m)，其中m为线性尺度下的调制深度。<br><b>伦理声明</b><br>所有被试均因参与研究获得相应报酬，并签署了书面知情同意书。本研究的伦理审批由丹麦首都大区科学伦理委员会（审批编号H-16036391）批准。<br><b>致谢</b><br>作者感谢Borgný Súsonnudóttir Hansen在数据采集过程中提供的协助，同时感谢Jens Hjortkjær与Jonatan Märcher-Rørsted无偿提供反向数字广度测试的实现代码。