Scimago Journal & Country Rank

Nature and Science of Sleepopen access

Country New Zealand  - SIR icon SIR Ranking of New Zealand
H Index
Subject Area and CategoryNeuroscience
Behavioral Neuroscience

Applied Psychology
Publisher Dove Medical Press Ltd.
Publication typeJournals
Scope Nature and Science of Sleep is an international, peer-reviewed, open access journal covering all aspects of sleep science and sleep medicine, including the neurophysiology and functions of sleep, the genetics of sleep, sleep and society, biological rhythms, dreaming, sleep disorders and therapy, and strategies to optimize healthy sleep. Specific topics covered in the journal include: The functions of sleep in humans and other animals Physiological and neurophysiological changes with sleep The genetics of sleep and sleep differences The neurotransmitters, receptors and pathways involved in controlling both sleep and wakefulness Behavioral and pharmacological interventions aimed at improving sleep, and improving wakefulness Sleep changes with development and with age Sleep and reproduction (e.g., changes across the menstrual cycle, with pregnancy and menopause) The science and nature of dreams Sleep disorders Impact of sleep and sleep disorders on health, daytime function and quality of life Sleep problems secondary to clinical disorders Interaction of society with sleep (e.g., consequences of shift work, occupational health, public health) The microbiome and sleep Chronotherapy Impact of circadian rhythms on sleep, physiology, cognition and health Mechanisms controlling circadian rhythms, centrally and peripherally Impact of circadian rhythm disruptions (including night shift work, jet lag and social jet lag) on sleep, physiology, cognition and health Behavioral and pharmacological interventions aimed at reducing adverse effects of circadian-related sleep disruption Assessment of technologies and biomarkers for measuring sleep and/or circadian rhythms Epigenetic markers of sleep or circadian disruption.


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The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Applied Psychology2010Q4
Applied Psychology2011Q3
Applied Psychology2012Q4
Applied Psychology2013Q3
Applied Psychology2014Q2
Applied Psychology2015Q2
Applied Psychology2016Q2
Applied Psychology2017Q2
Applied Psychology2018Q2
Applied Psychology2019Q1
Behavioral Neuroscience2010Q4
Behavioral Neuroscience2011Q4
Behavioral Neuroscience2012Q4
Behavioral Neuroscience2013Q4
Behavioral Neuroscience2014Q3
Behavioral Neuroscience2015Q3
Behavioral Neuroscience2016Q3
Behavioral Neuroscience2017Q3
Behavioral Neuroscience2018Q3
Behavioral Neuroscience2019Q1

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)20090.000
Cites / Doc. (4 years)20101.000
Cites / Doc. (4 years)20110.875
Cites / Doc. (4 years)20121.094
Cites / Doc. (4 years)20131.565
Cites / Doc. (4 years)20142.500
Cites / Doc. (4 years)20152.660
Cites / Doc. (4 years)20163.102
Cites / Doc. (4 years)20173.474
Cites / Doc. (4 years)20183.385
Cites / Doc. (4 years)20194.193
Cites / Doc. (3 years)20090.000
Cites / Doc. (3 years)20101.000
Cites / Doc. (3 years)20110.875
Cites / Doc. (3 years)20121.094
Cites / Doc. (3 years)20131.511
Cites / Doc. (3 years)20142.424
Cites / Doc. (3 years)20152.881
Cites / Doc. (3 years)20163.044
Cites / Doc. (3 years)20173.149
Cites / Doc. (3 years)20183.189
Cites / Doc. (3 years)20194.289
Cites / Doc. (2 years)20090.000
Cites / Doc. (2 years)20101.000
Cites / Doc. (2 years)20110.875
Cites / Doc. (2 years)20121.065
Cites / Doc. (2 years)20131.500
Cites / Doc. (2 years)20142.600
Cites / Doc. (2 years)20153.107
Cites / Doc. (2 years)20163.118
Cites / Doc. (2 years)20172.820
Cites / Doc. (2 years)20183.246
Cites / Doc. (2 years)20194.984
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites20090
Self Cites20100
Self Cites201111
Self Cites20122
Self Cites20131
Self Cites20146
Self Cites20152
Self Cites20165
Self Cites20173
Self Cites20189
Self Cites201911
Total Cites20090
Total Cites20101
Total Cites201121
Total Cites201235
Total Cites201368
Total Cites201480
Total Cites2015121
Total Cites2016137
Total Cites2017211
Total Cites2018236
Total Cites2019416
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document20090
External Cites per document20101.000
External Cites per document20110.417
External Cites per document20121.031
External Cites per document20131.489
External Cites per document20142.242
External Cites per document20152.833
External Cites per document20162.933
External Cites per document20173.104
External Cites per document20183.068
External Cites per document20194.175
Cites per document20090.000
Cites per document20101.000
Cites per document20110.875
Cites per document20121.094
Cites per document20131.511
Cites per document20142.424
Cites per document20152.881
Cites per document20163.044
Cites per document20173.149
Cites per document20183.189
Cites per document20194.289
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents20090
Non-citable documents20100
Non-citable documents20110
Non-citable documents20121
Non-citable documents20131
Non-citable documents20141
Non-citable documents20150
Non-citable documents20160
Non-citable documents20173
Non-citable documents20185
Non-citable documents20199
Citable documents20090
Citable documents20101
Citable documents201124
Citable documents201232
Citable documents201345
Citable documents201433
Citable documents201542
Citable documents201645
Citable documents201767
Citable documents201874
Citable documents201997
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents20090
Uncited documents20100
Uncited documents201111
Uncited documents201217
Uncited documents201314
Uncited documents20148
Uncited documents20159
Uncited documents201611
Uncited documents201715
Uncited documents201817
Uncited documents201924
Cited documents20090
Cited documents20101
Cited documents201113
Cited documents201216
Cited documents201332
Cited documents201426
Cited documents201533
Cited documents201634
Cited documents201755
Cited documents201862
Cited documents201982
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