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). The Readme file provides a description of the dataset's content, and of the related article. 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)Population Data Dataset giving the population information for the 21 participants (tp), split into young NH and older NH (group), tested in the study. The data summarizes the participants' age, and tested ear (ear), as well as their Reverse Digit Span score (rds_score). The age is given in years, and the reverse digit span score is given on a normalized scale from 0 to 1. Audiogram Audiometric thresholds (thresh) were collected for 21 participants (tp), split into young NH and older NH (group), at frequencies (freq) of 0.125, 0.25, 0.5, 1, 2, 3, 4, 6, and 8 kHz. The thresholds are given in dB Hearing Level (HL). Hearing Threshold Hearing thresholds collected at the test frequency (2.8 kHz) for all listeners. 21 participants (tp), split into young NH and older NH (group) were tested. The thresholds (thresh) were measured across at least 3 repetitions (repetition) 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). AM Detection Dataset for the amplitude modulation detection thresholds collected with a short stimulus duration (0.6 s). 21 participants (tp), split into young NH and older NH (group), were tested. Detection thresholds (thresh) were collected at four different target modulation frequencies (fmod) of 4, 16, 64, and 128 Hz. At least three repetitions (repetition) 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 thresh 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. AM Detection Extended Dataset for the amplitude modulation detection thresholds collected with an extended stimulus duration (1.1 s). 21 participants (tp), split into young NH and older NH (group), were tested. Detection thresholds (thresh) were collected at a target modulation frequency (fmod) of 4 Hz. At least three repetitions (repetition) 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 thresh 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. Masked-Threshold Patterns (MTPs) Dataset for the masked-threshold patterns (MTPs) collected with a short stimulus duration (0.6 s). 21 participants (tp), split into young NH and older NH (group), were tested. Masked thresholds (thresh) were collected at four different target modulation frequencies (fmod) 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, mask_oct) at -5, -4, -2, -4/3, -2/3, 0, +2/3, +4/3, and +2 octaves. At least three repetitions (repetition) 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 thresh 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. Masked-Threshold Patterns (MTPs) Extended Dataset for the masked-threshold patterns (MTPs) collected with an extended stimulus duration (1.1 s). 21 participants (tp), split into young NH and older NH (group), were tested. Masked thresholds (thresh) were collected at a target modulation frequency (fmod) of 4 Hz, and seven different masker-modulation center frequencies (given as octaves relative to the target modulation frequency, mask_oct) ranging from -2 to +2 octaves, in steps of 2/3. At least three repetitions (repetition) 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 thresh 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. Ethical statement 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). Acknowledgments 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（normal hearing, NH）受试者的数据，其中青年NH受试者11名、老年NH受试者10名。本数据集的README文件中提供了数据集内容与相关研究论文的说明。 收集的实验数据包括：人口统计学数据：年龄、测试耳与反向数字广度（Reverse Digit Span）得分；听力图；短刺激时长下的幅度调制检测阈值；长刺激时长下的幅度调制检测阈值；短刺激时长下的掩蔽阈值模式（Masked-threshold patterns, MTP）；长刺激时长下的掩蔽阈值模式（MTP）。 ### 人口统计学数据集 该数据集包含本研究中21名受试者（记为tp）的人口信息，按青年NH组与老年NH组（group）进行分组。数据集汇总了受试者的年龄（单位：年）、测试耳（ear）以及反向数字广度得分（rds_score），其中年龄以自然年为单位，反向数字广度得分采用0至1的归一化量表进行标注。 ### 听力图数据集 本研究为21名受试者（tp，按青年NH组与老年NH组分组），在0.125、0.25、0.5、1、2、3、4、6与8 kHz的测试频率下采集了听阈（thresh），听阈单位为分贝听力级（dB Hearing Level, HL）。 ### 测试频率听阈数据集 本研究为所有受试者采集了2.8 kHz测试频率下的听阈，受试者共21名（tp，按青年NH组与老年NH组分组）。每名受试者的听阈（thresh）至少重复测试3次（repetition），若重复测试的标准误超过2 dB，则追加测试直至满足该要求。听阈单位为分贝声压级（dB Sound Pressure Level, SPL）。 ### 短刺激时长幅度调制检测阈值数据集 本研究对21名受试者（tp，按青年NH组与老年NH组分组）进行了测试。在4、16、64与128 Hz共4种目标调制频率（fmod）下采集了检测阈值（thresh），每种测试条件至少重复测试3次。若重复测试的标准误超过2 dB，则追加测试直至满足要求。若某次重复测试未获得有效阈值，则thresh条目标注为"NaN"。阈值以目标调制深度的分贝量表表示：M = 20log10(m)，其中m为线性标度下的调制深度。 ### 长刺激时长幅度调制检测阈值扩展数据集 本研究对21名受试者（tp，按青年NH组与老年NH组分组）进行了测试。在4 Hz的目标调制频率（fmod）下采集了检测阈值（thresh），每种测试条件至少重复测试3次。若重复测试的标准误超过2 dB，则追加测试直至满足要求。若某次重复测试未获得有效阈值，则thresh条目标注为"NaN"。阈值以目标调制深度的分贝量表表示：M = 20log10(m)，其中m为线性标度下的调制深度。 ### 短刺激时长掩蔽阈值模式（MTPs）数据集 本研究对21名受试者（tp，按青年NH组与老年NH组分组）进行了测试。在4、16、64与128 Hz共4种目标调制频率（fmod）下，以及相对于目标调制频率以倍频程表示的-5、-4、-2、-4/3、-2/3、0、+2/3、+4/3与+2倍频程共5至7种掩蔽调制中心频率（mask_oct）下，采集了掩蔽阈值（thresh）。每种测试条件至少重复测试3次。若重复测试的标准误超过2 dB，则追加测试直至满足要求。若某次重复测试未获得有效阈值，则thresh条目标注为"NaN"。阈值以目标调制深度的分贝量表表示：M = 20log10(m)，其中m为线性标度下的调制深度。 ### 长刺激时长掩蔽阈值模式（MTPs）扩展数据集 本研究对21名受试者（tp，按青年NH组与老年NH组分组）进行了测试。在4 Hz的目标调制频率（fmod）下，以及以2/3倍频程为步长、范围为-2至+2倍频程的7种掩蔽调制中心频率（mask_oct）下，采集了掩蔽阈值（thresh）。每种测试条件至少重复测试3次。若重复测试的标准误超过2 dB，则追加测试直至满足要求。若某次重复测试未获得有效阈值，则thresh条目标注为"NaN"。阈值以目标调制深度的分贝量表表示：M = 20log10(m)，其中m为线性标度下的调制深度。 ### 伦理声明 所有受试者均因参与研究获得相应劳务报酬，并签署了书面知情同意书。本研究的伦理审查与批准由丹麦首都地区科学伦理委员会出具，审批编号为H-16036391。 ### 致谢 作者感谢Borgný Súsonnudóttir Hansen在数据收集中做出的贡献，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。