Pub Date : 2021-12-07DOI: 10.1163/22134468-10010001
{"title":"Timing & Time Perception","authors":"","doi":"10.1163/22134468-10010001","DOIUrl":"https://doi.org/10.1163/22134468-10010001","url":null,"abstract":"","PeriodicalId":29927,"journal":{"name":"Timing & Time Perception","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48812236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-08-13DOI: 10.1163/22134468-bja10043
Carlos Jurado, Marcelo Larrea, David Rosero, Juan Vizuete, T. Marquardt
What sound quality has led to exclude infrasound from sound in the conventional hearing range? We examined whether temporal segregation of pressure pulses is a distinctive property and evaluated this perceptual limit via an adaptive psychophysical procedure for pure tones and carriers of different envelopes. Further, to examine across-domain similarity and individual covariation of this limit, here called the critical segregation rate (CSR), it was also measured for various periodic visual and vibrotactile stimuli. Results showed that sequential auditory or vibrotactile stimuli separated by at least ~80‒90 ms (~11‒12-Hz repetition rates), will be perceived as perceptually segregated from one another. While this limit did not statistically differ between these two modalities, it was significantly lower than the ~150 ms necessary to perceptually segregate successive visual stimuli. For the three sensory modalities, stimulus periodicity was the main factor determining the CSR, which apparently reflects neural recovery times of the different sensory systems. Among all experimental conditions, significant within- and across-modality individual CSR correlations were observed, despite the visual CSR (mean: 6.8 Hz) being significantly lower than that of both other modalities. The auditory CSR was found to be significantly lower than the frequency above which sinusoids start to elicit a tonal quality (19 Hz; recently published for the same subjects). Returning to our initial question, the latter suggests that the cessation of tonal quality — not the segregation of pressure fluctuations — is the perceptual quality that has led to exclude infrasound (sound with frequencies < 20 Hz) from the conventional hearing range.
{"title":"Critical Repetition Rates for Perceptual Segregation of Time-Varying Auditory, Visual and Vibrotactile Stimulation","authors":"Carlos Jurado, Marcelo Larrea, David Rosero, Juan Vizuete, T. Marquardt","doi":"10.1163/22134468-bja10043","DOIUrl":"https://doi.org/10.1163/22134468-bja10043","url":null,"abstract":"\u0000What sound quality has led to exclude infrasound from sound in the conventional hearing range? We examined whether temporal segregation of pressure pulses is a distinctive property and evaluated this perceptual limit via an adaptive psychophysical procedure for pure tones and carriers of different envelopes. Further, to examine across-domain similarity and individual covariation of this limit, here called the critical segregation rate (CSR), it was also measured for various periodic visual and vibrotactile stimuli. Results showed that sequential auditory or vibrotactile stimuli separated by at least ~80‒90 ms (~11‒12-Hz repetition rates), will be perceived as perceptually segregated from one another. While this limit did not statistically differ between these two modalities, it was significantly lower than the ~150 ms necessary to perceptually segregate successive visual stimuli. For the three sensory modalities, stimulus periodicity was the main factor determining the CSR, which apparently reflects neural recovery times of the different sensory systems. Among all experimental conditions, significant within- and across-modality individual CSR correlations were observed, despite the visual CSR (mean: 6.8 Hz) being significantly lower than that of both other modalities. The auditory CSR was found to be significantly lower than the frequency above which sinusoids start to elicit a tonal quality (19 Hz; recently published for the same subjects). Returning to our initial question, the latter suggests that the cessation of tonal quality — not the segregation of pressure fluctuations — is the perceptual quality that has led to exclude infrasound (sound with frequencies < 20 Hz) from the conventional hearing range.","PeriodicalId":29927,"journal":{"name":"Timing & Time Perception","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43559294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-26DOI: 10.1163/22134468-BJA10042
Miria N Plastira, M. Avraamides
In this experiment we explored the effect of music tempo on the perception of time. Musically trained and nontrained participants carried out a reproduction task with music clips of various durations and tempos. Results revealed that the reproduced durations were longer for fast-tempo music clips than for slow-tempo music clips of equal duration. In addition, short clips were more accurately reproduced compared to longer stimuli. Notably, the error in reproducing the duration of a stimulus was overall lower for musically trained than nontrained participants, but more so for short than long clips. Finally, the accuracy in estimating the duration of the music clips correlated positively with years of musical training, further suggesting that musical training is a critical variable for time estimation.
{"title":"Music Tempo and Perception of Time: Musically Trained vs Nontrained Individuals","authors":"Miria N Plastira, M. Avraamides","doi":"10.1163/22134468-BJA10042","DOIUrl":"https://doi.org/10.1163/22134468-BJA10042","url":null,"abstract":"\u0000In this experiment we explored the effect of music tempo on the perception of time. Musically trained and nontrained participants carried out a reproduction task with music clips of various durations and tempos. Results revealed that the reproduced durations were longer for fast-tempo music clips than for slow-tempo music clips of equal duration. In addition, short clips were more accurately reproduced compared to longer stimuli. Notably, the error in reproducing the duration of a stimulus was overall lower for musically trained than nontrained participants, but more so for short than long clips. Finally, the accuracy in estimating the duration of the music clips correlated positively with years of musical training, further suggesting that musical training is a critical variable for time estimation.","PeriodicalId":29927,"journal":{"name":"Timing & Time Perception","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45373943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-21DOI: 10.1163/22134468-bja10041
N. P. Todd, P. Keller, S. Govender, J. Colebatch
We report an experiment to investigate possible vestibular effects on finger tapping to an auditory anapaest rhythm. In a sample of 10 subjects, index finger acceleration and tapping force were recorded along with extensor/flexor activity and the associated electroencephalographic activity measured at central and cerebellar surface electrodes. In a prior session with a standard short air-conducted 500-Hz pip, vestibular evoked myogenic potential thresholds were measured and subsequently used to set the acoustic intensity. During the main experiment subjects were asked to synchronise tapping to the pips arranged in the anapaest at two different frequencies, 500 Hz vs 5 kHz, so that only the low-frequency high-intensity condition was a vestibular, as well as an auditory stimulus. We hypothesised that a vestibular effect would manifest in an interaction between the frequency and intensity factors for a range of dependent measures of tapping performance. No clear evidence was found for vestibular effects, but this was likely due to the confounding effects of an independent effect of intensity and the relative weakness of the acoustic vestibular stimulus. However, the data did show novel evidence for two distinct timing processes for the flexion and extension stages of a tap cycle and two distinct timing strategies, which we refer to as ‘staccato’ and ‘legato’, characterised by different profiles of force and extension.
{"title":"Effects of Stimulus Intensity and Frequency on the Force and Timing of Sensorimotor Synchronisation","authors":"N. P. Todd, P. Keller, S. Govender, J. Colebatch","doi":"10.1163/22134468-bja10041","DOIUrl":"https://doi.org/10.1163/22134468-bja10041","url":null,"abstract":"\u0000We report an experiment to investigate possible vestibular effects on finger tapping to an auditory anapaest rhythm. In a sample of 10 subjects, index finger acceleration and tapping force were recorded along with extensor/flexor activity and the associated electroencephalographic activity measured at central and cerebellar surface electrodes. In a prior session with a standard short air-conducted 500-Hz pip, vestibular evoked myogenic potential thresholds were measured and subsequently used to set the acoustic intensity. During the main experiment subjects were asked to synchronise tapping to the pips arranged in the anapaest at two different frequencies, 500 Hz vs 5 kHz, so that only the low-frequency high-intensity condition was a vestibular, as well as an auditory stimulus. We hypothesised that a vestibular effect would manifest in an interaction between the frequency and intensity factors for a range of dependent measures of tapping performance. No clear evidence was found for vestibular effects, but this was likely due to the confounding effects of an independent effect of intensity and the relative weakness of the acoustic vestibular stimulus. However, the data did show novel evidence for two distinct timing processes for the flexion and extension stages of a tap cycle and two distinct timing strategies, which we refer to as ‘staccato’ and ‘legato’, characterised by different profiles of force and extension.","PeriodicalId":29927,"journal":{"name":"Timing & Time Perception","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43502420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-31DOI: 10.1163/22134468-BJA10038
J. Wearden, Jordan J. Wehrman
People produced time intervals of 500 to 1250 ms, with accurate feedback in ms provided after each production. The mean times produced tracked the target times closely, and the coefficient of variation (standard deviation/mean) declined with increasing target time. The mean absolute change from one trial to another, and its standard deviation, measures of trial-by-trial change, also increased with target time. A model of feedback was fitted to all four measures. It assumed that the time produced resulted from a combination of a scalar timing process and a non-timing process. Although the non-timing process was on average invariant with target time, the timing process was assumed to be sensitive to feedback, in two different ways. If the previous production was close to the target the model repeated it (a repeat process), but if it was further away the next production was adjusted by an amount related to the discrepancy between the previous production and the target (an adjust process). The balance between the two was governed by a threshold, which was on average constant, and it was further assumed that the relative variability of the repeat process was lower than that of the adjust process. The model produced output which fitted three of the four measures well (average deviation of 3 or 4%) but fitted the standard deviation of change less well. Reducing the magnitude of the non-timing process produced output which conformed approximately to scalar timing, and the model could also mimic data resulting from the provision of inaccurate feedback.
{"title":"Modelling Feedback Effects on the Production of Short Time Intervals","authors":"J. Wearden, Jordan J. Wehrman","doi":"10.1163/22134468-BJA10038","DOIUrl":"https://doi.org/10.1163/22134468-BJA10038","url":null,"abstract":"\u0000People produced time intervals of 500 to 1250 ms, with accurate feedback in ms provided after each production. The mean times produced tracked the target times closely, and the coefficient of variation (standard deviation/mean) declined with increasing target time. The mean absolute change from one trial to another, and its standard deviation, measures of trial-by-trial change, also increased with target time. A model of feedback was fitted to all four measures. It assumed that the time produced resulted from a combination of a scalar timing process and a non-timing process. Although the non-timing process was on average invariant with target time, the timing process was assumed to be sensitive to feedback, in two different ways. If the previous production was close to the target the model repeated it (a repeat process), but if it was further away the next production was adjusted by an amount related to the discrepancy between the previous production and the target (an adjust process). The balance between the two was governed by a threshold, which was on average constant, and it was further assumed that the relative variability of the repeat process was lower than that of the adjust process. The model produced output which fitted three of the four measures well (average deviation of 3 or 4%) but fitted the standard deviation of change less well. Reducing the magnitude of the non-timing process produced output which conformed approximately to scalar timing, and the model could also mimic data resulting from the provision of inaccurate feedback.","PeriodicalId":29927,"journal":{"name":"Timing & Time Perception","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41976400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-31DOI: 10.1163/22134468-BJA10037
L. Lo, H. M. Tam, W. O. Li
Everyone has 24 hours in a day, but this does not feel the same for everyone. Time perception can be subjective and is affected by a wide range of factors. Studies have shown that presenting pictures with actions can bias observers’ performance in a duration reproduction task. Instead of watching pictures of actions, this research explored the effect of gesture posing on such a time perception bias. Sixty participants were assigned into either a watching or posing group. Compared with the corresponding baseline performance, participants overestimated time duration when viewing or posing pictures suggesting action. A corresponding underestimation was observed when the pictures or gestures suggested inaction. The role of physical gestures and their potential effect on time perception based on the embodiment account is discussed. Further investigation is also proposed to examine the role of the embodiment effect on subsecond time intervals.
{"title":"Running Fast and Standing Slow: a Study on the Effect of Gesture Posing on Time Perception","authors":"L. Lo, H. M. Tam, W. O. Li","doi":"10.1163/22134468-BJA10037","DOIUrl":"https://doi.org/10.1163/22134468-BJA10037","url":null,"abstract":"\u0000Everyone has 24 hours in a day, but this does not feel the same for everyone. Time perception can be subjective and is affected by a wide range of factors. Studies have shown that presenting pictures with actions can bias observers’ performance in a duration reproduction task. Instead of watching pictures of actions, this research explored the effect of gesture posing on such a time perception bias. Sixty participants were assigned into either a watching or posing group. Compared with the corresponding baseline performance, participants overestimated time duration when viewing or posing pictures suggesting action. A corresponding underestimation was observed when the pictures or gestures suggested inaction. The role of physical gestures and their potential effect on time perception based on the embodiment account is discussed. Further investigation is also proposed to examine the role of the embodiment effect on subsecond time intervals.","PeriodicalId":29927,"journal":{"name":"Timing & Time Perception","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44518099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-17DOI: 10.1163/22134468-bja10031
S. Droit-Volet, N. Martinelli, M. Dambrun, G. Vallet, Fanny Lorandi
This study examined the judgment of the passage of time in elderly people living in retirement homes, focusing on the passage of time experienced in the present and that judged retrospectively for short periods (last day, week, month) and longer periods of life (last year, now compared with five years ago, as we get older). Participants’ cognitive abilities and feelings of happiness were also assessed among other dimensions. Results showed no significant relationship between these three forms of judgment of the passage of time, except between the judgment of the passage of time for the present and for the day. In addition, the level of happiness was a significant predictor of both the momentary judgment of the passage of time and the retrospective judgment of the passage of time for shorter periods. In contrast, the individual differences in cognitive abilities better explained differences in the retrospective judgment of the passage of time for longer periods. As discussed, the different forms of judgment of the passage of time are therefore based on different cognitive mechanisms.
{"title":"The Retrospective and Present Judgment of the Passage of Time in the Elderly","authors":"S. Droit-Volet, N. Martinelli, M. Dambrun, G. Vallet, Fanny Lorandi","doi":"10.1163/22134468-bja10031","DOIUrl":"https://doi.org/10.1163/22134468-bja10031","url":null,"abstract":"\u0000 This study examined the judgment of the passage of time in elderly people living in retirement homes, focusing on the passage of time experienced in the present and that judged retrospectively for short periods (last day, week, month) and longer periods of life (last year, now compared with five years ago, as we get older). Participants’ cognitive abilities and feelings of happiness were also assessed among other dimensions. Results showed no significant relationship between these three forms of judgment of the passage of time, except between the judgment of the passage of time for the present and for the day. In addition, the level of happiness was a significant predictor of both the momentary judgment of the passage of time and the retrospective judgment of the passage of time for shorter periods. In contrast, the individual differences in cognitive abilities better explained differences in the retrospective judgment of the passage of time for longer periods. As discussed, the different forms of judgment of the passage of time are therefore based on different cognitive mechanisms.","PeriodicalId":29927,"journal":{"name":"Timing & Time Perception","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48904865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-13DOI: 10.1163/22134468-bja10032
Pavol Kačmár, Merav Beere
Both time and goals are ubiquitous in our everyday lives. The main aim of the present set of studies was to corroborate if time perspective, as conceptualized by Zimbardo Time Perspective Inventory, is related to goal disengagement and reengagement during problematic goal striving. Over three studies, with more than 600 participants varying in age and cultural background, it was found that future time perspective is related to goal disengagement from a problematic goal striving. A pilot study with 103 university students showed that the future positive scale was negatively related to the general capacity to disengage. In a second study with 356 high-school students, it was shown that the future positive, past positive and present hedonistic scales were negatively correlated to goal disengagement, while the present fatalistic and future negative scales were positively correlated to goal disengagement. However, when accounting for the Big-five, only the future negative and (possibly) present hedonistic scales remained statistically significant predictors of the capacity to disengage from a goal. In the third study, the role of the future time perspective was replicated among 169 people suffering from chronic pain disease. It was shown that the future time perspective (in its general form) negatively predicted the general capacity to disengage. Moreover, focusing on more process-oriented aspects, this further predicted the action crisis during goal pursuit. This set of studies not only provides novel findings but also encourages further investigation of the time perspective in goal striving.
{"title":"The Role of Time Perspective in the General Tendency to Disengage and Reengage from Problematic Goal Striving","authors":"Pavol Kačmár, Merav Beere","doi":"10.1163/22134468-bja10032","DOIUrl":"https://doi.org/10.1163/22134468-bja10032","url":null,"abstract":"\u0000 Both time and goals are ubiquitous in our everyday lives. The main aim of the present set of studies was to corroborate if time perspective, as conceptualized by Zimbardo Time Perspective Inventory, is related to goal disengagement and reengagement during problematic goal striving. Over three studies, with more than 600 participants varying in age and cultural background, it was found that future time perspective is related to goal disengagement from a problematic goal striving. A pilot study with 103 university students showed that the future positive scale was negatively related to the general capacity to disengage. In a second study with 356 high-school students, it was shown that the future positive, past positive and present hedonistic scales were negatively correlated to goal disengagement, while the present fatalistic and future negative scales were positively correlated to goal disengagement. However, when accounting for the Big-five, only the future negative and (possibly) present hedonistic scales remained statistically significant predictors of the capacity to disengage from a goal. In the third study, the role of the future time perspective was replicated among 169 people suffering from chronic pain disease. It was shown that the future time perspective (in its general form) negatively predicted the general capacity to disengage. Moreover, focusing on more process-oriented aspects, this further predicted the action crisis during goal pursuit. This set of studies not only provides novel findings but also encourages further investigation of the time perspective in goal striving.","PeriodicalId":29927,"journal":{"name":"Timing & Time Perception","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48219357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-11DOI: 10.1163/22134468-BJA10036
Xinyue Wang, Clemens Wöllner, Zhuanghua Shi
Compared to vision, audition has been considered to be the dominant sensory modality for temporal processing. Nevertheless, recent research suggests the opposite, such that the apparent inferiority of visual information in tempo judgements might be due to the lack of ecological validity of experimental stimuli, and reliable visual movements may have the potential to alter the temporal location of perceived auditory inputs. To explore the role of audition and vision in overall time perception, audiovisual stimuli with various degrees of temporal congruence were developed in the current study. We investigated which sensory modality weighs more in holistic tempo judgements with conflicting audiovisual information, and whether biological motion (point-light displays of dancers) rather than auditory cues (rhythmic beats) dominate judgements of tempo. A bisection experiment found that participants relied more on visual tempo compared to auditory tempo in overall tempo judgements. For fast tempi (150 to 180 BPM), participants judged ‘fast’ significantly more often with visual cues regardless of the auditory tempo, whereas for slow tempi (60 to 90 BPM), they did so significantly less often. Our results support the notion that visual stimuli with higher ecological validity have the potential to drive up or down the holistic perception of tempo.
{"title":"Perceiving Tempo in Incongruent Audiovisual Presentations of Human Motion: Evidence for a Visual Driving Effect","authors":"Xinyue Wang, Clemens Wöllner, Zhuanghua Shi","doi":"10.1163/22134468-BJA10036","DOIUrl":"https://doi.org/10.1163/22134468-BJA10036","url":null,"abstract":"\u0000Compared to vision, audition has been considered to be the dominant sensory modality for temporal processing. Nevertheless, recent research suggests the opposite, such that the apparent inferiority of visual information in tempo judgements might be due to the lack of ecological validity of experimental stimuli, and reliable visual movements may have the potential to alter the temporal location of perceived auditory inputs. To explore the role of audition and vision in overall time perception, audiovisual stimuli with various degrees of temporal congruence were developed in the current study. We investigated which sensory modality weighs more in holistic tempo judgements with conflicting audiovisual information, and whether biological motion (point-light displays of dancers) rather than auditory cues (rhythmic beats) dominate judgements of tempo. A bisection experiment found that participants relied more on visual tempo compared to auditory tempo in overall tempo judgements. For fast tempi (150 to 180 BPM), participants judged ‘fast’ significantly more often with visual cues regardless of the auditory tempo, whereas for slow tempi (60 to 90 BPM), they did so significantly less often. Our results support the notion that visual stimuli with higher ecological validity have the potential to drive up or down the holistic perception of tempo.","PeriodicalId":29927,"journal":{"name":"Timing & Time Perception","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41562060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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