Scimago Journal & Country Rank

Learning and Memory

Country United States  - SIR icon SIR Ranking of United States
H Index
Subject Area and CategoryNeuroscience
Cellular and Molecular Neuroscience
Cognitive Neuroscience

Neuropsychology and Physiological Psychology
Publisher Cold Spring Harbor Laboratory Press  - SIR iconSCImago Institutions Ranking
Publication typeJournals
ISSN10720502, 15495485
Scope The neurobiology of learning and memory is entering a new interdisciplinary era. Advances in neuropsychology have identified regions of brain tissue that are critical for certain types of function. Electrophysiological techniques have revealed behavioral correlates of neuronal activity. Studies of synaptic plasticity suggest that some mechanisms of memory formation may resemble those of neural development. And molecular approaches have identified genes with patterns of expression that influence behavior. It is clear that future progress depends on interdisciplinary investigations. The current literature of learning and memory is large but fragmented. Until now, there has been no single journal devoted to this area of study and no dominant journal that demands attention by serious workers in the area, regardless of specialty. Learning & Memory provides a forum for these investigations in the form of research papers and review articles.


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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.

Cellular and Molecular Neuroscience1999Q1
Cellular and Molecular Neuroscience2000Q1
Cellular and Molecular Neuroscience2001Q1
Cellular and Molecular Neuroscience2002Q1
Cellular and Molecular Neuroscience2003Q1
Cellular and Molecular Neuroscience2004Q1
Cellular and Molecular Neuroscience2005Q1
Cellular and Molecular Neuroscience2006Q1
Cellular and Molecular Neuroscience2007Q1
Cellular and Molecular Neuroscience2008Q1
Cellular and Molecular Neuroscience2009Q1
Cellular and Molecular Neuroscience2010Q1
Cellular and Molecular Neuroscience2011Q1
Cellular and Molecular Neuroscience2012Q1
Cellular and Molecular Neuroscience2013Q1
Cellular and Molecular Neuroscience2014Q1
Cellular and Molecular Neuroscience2015Q2
Cellular and Molecular Neuroscience2016Q1
Cellular and Molecular Neuroscience2017Q2
Cellular and Molecular Neuroscience2018Q2
Cellular and Molecular Neuroscience2019Q2
Cognitive Neuroscience1999Q1
Cognitive Neuroscience2000Q1
Cognitive Neuroscience2001Q1
Cognitive Neuroscience2002Q1
Cognitive Neuroscience2003Q1
Cognitive Neuroscience2004Q1
Cognitive Neuroscience2005Q1
Cognitive Neuroscience2006Q1
Cognitive Neuroscience2007Q1
Cognitive Neuroscience2008Q1
Cognitive Neuroscience2009Q1
Cognitive Neuroscience2010Q1
Cognitive Neuroscience2011Q1
Cognitive Neuroscience2012Q1
Cognitive Neuroscience2013Q1
Cognitive Neuroscience2014Q1
Cognitive Neuroscience2015Q1
Cognitive Neuroscience2016Q1
Cognitive Neuroscience2017Q1
Cognitive Neuroscience2018Q2
Cognitive Neuroscience2019Q2
Neuropsychology and Physiological Psychology1999Q1
Neuropsychology and Physiological Psychology2000Q1
Neuropsychology and Physiological Psychology2001Q1
Neuropsychology and Physiological Psychology2002Q1
Neuropsychology and Physiological Psychology2003Q1
Neuropsychology and Physiological Psychology2004Q1
Neuropsychology and Physiological Psychology2005Q1
Neuropsychology and Physiological Psychology2006Q1
Neuropsychology and Physiological Psychology2007Q1
Neuropsychology and Physiological Psychology2008Q1
Neuropsychology and Physiological Psychology2009Q1
Neuropsychology and Physiological Psychology2010Q1
Neuropsychology and Physiological Psychology2011Q1
Neuropsychology and Physiological Psychology2012Q1
Neuropsychology and Physiological Psychology2013Q1
Neuropsychology and Physiological Psychology2014Q1
Neuropsychology and Physiological Psychology2015Q1
Neuropsychology and Physiological Psychology2016Q1
Neuropsychology and Physiological Psychology2017Q1
Neuropsychology and Physiological Psychology2018Q1
Neuropsychology and Physiological Psychology2019Q1

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)19992.504
Cites / Doc. (4 years)20003.529
Cites / Doc. (4 years)20013.935
Cites / Doc. (4 years)20024.714
Cites / Doc. (4 years)20034.875
Cites / Doc. (4 years)20045.129
Cites / Doc. (4 years)20054.975
Cites / Doc. (4 years)20065.815
Cites / Doc. (4 years)20076.169
Cites / Doc. (4 years)20085.064
Cites / Doc. (4 years)20094.549
Cites / Doc. (4 years)20105.290
Cites / Doc. (4 years)20114.985
Cites / Doc. (4 years)20125.327
Cites / Doc. (4 years)20135.514
Cites / Doc. (4 years)20144.398
Cites / Doc. (4 years)20154.006
Cites / Doc. (4 years)20163.925
Cites / Doc. (4 years)20173.680
Cites / Doc. (4 years)20183.377
Cites / Doc. (4 years)20193.006
Cites / Doc. (3 years)19992.504
Cites / Doc. (3 years)20003.664
Cites / Doc. (3 years)20014.301
Cites / Doc. (3 years)20024.164
Cites / Doc. (3 years)20034.736
Cites / Doc. (3 years)20045.377
Cites / Doc. (3 years)20054.563
Cites / Doc. (3 years)20065.854
Cites / Doc. (3 years)20075.920
Cites / Doc. (3 years)20084.567
Cites / Doc. (3 years)20094.586
Cites / Doc. (3 years)20105.172
Cites / Doc. (3 years)20114.833
Cites / Doc. (3 years)20125.201
Cites / Doc. (3 years)20134.985
Cites / Doc. (3 years)20144.333
Cites / Doc. (3 years)20153.751
Cites / Doc. (3 years)20163.736
Cites / Doc. (3 years)20173.348
Cites / Doc. (3 years)20183.021
Cites / Doc. (3 years)20192.628
Cites / Doc. (2 years)19992.411
Cites / Doc. (2 years)20004.053
Cites / Doc. (2 years)20013.284
Cites / Doc. (2 years)20023.724
Cites / Doc. (2 years)20034.765
Cites / Doc. (2 years)20044.778
Cites / Doc. (2 years)20054.401
Cites / Doc. (2 years)20065.500
Cites / Doc. (2 years)20074.818
Cites / Doc. (2 years)20084.416
Cites / Doc. (2 years)20094.233
Cites / Doc. (2 years)20104.902
Cites / Doc. (2 years)20114.484
Cites / Doc. (2 years)20124.291
Cites / Doc. (2 years)20134.739
Cites / Doc. (2 years)20143.823
Cites / Doc. (2 years)20153.456
Cites / Doc. (2 years)20163.200
Cites / Doc. (2 years)20172.925
Cites / Doc. (2 years)20182.491
Cites / Doc. (2 years)20192.355
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 Cites19995
Self Cites200048
Self Cites200140
Self Cites200224
Self Cites200324
Self Cites200468
Self Cites200553
Self Cites2006136
Self Cites2007106
Self Cites2008127
Self Cites2009124
Self Cites201091
Self Cites201176
Self Cites201267
Self Cites201380
Self Cites201467
Self Cites201539
Self Cites201641
Self Cites201738
Self Cites201834
Self Cites201921
Total Cites1999313
Total Cites2000502
Total Cites2001615
Total Cites2002558
Total Cites2003611
Total Cites2004742
Total Cites2005908
Total Cites20061399
Total Cites20071699
Total Cites20081329
Total Cites20091486
Total Cites20101650
Total Cites20111445
Total Cites20121451
Total Cites20131296
Total Cites20141170
Total Cites2015979
Total Cites2016949
Total Cites2017827
Total Cites2018734
Total Cites2019628
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 document19992.464
External Cites per document20003.314
External Cites per document20014.021
External Cites per document20023.985
External Cites per document20034.550
External Cites per document20044.884
External Cites per document20054.296
External Cites per document20065.285
External Cites per document20075.551
External Cites per document20084.131
External Cites per document20094.204
External Cites per document20104.887
External Cites per document20114.579
External Cites per document20124.961
External Cites per document20134.677
External Cites per document20144.085
External Cites per document20153.602
External Cites per document20163.575
External Cites per document20173.194
External Cites per document20182.881
External Cites per document20192.540
Cites per document19992.504
Cites per document20003.664
Cites per document20014.301
Cites per document20024.164
Cites per document20034.736
Cites per document20045.377
Cites per document20054.563
Cites per document20065.854
Cites per document20075.920
Cites per document20084.567
Cites per document20094.586
Cites per document20105.172
Cites per document20114.833
Cites per document20125.201
Cites per document20134.985
Cites per document20144.333
Cites per document20153.751
Cites per document20163.736
Cites per document20173.348
Cites per document20183.021
Cites per document20192.628
% 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 documents19993
Non-citable documents20009
Non-citable documents200111
Non-citable documents200210
Non-citable documents200310
Non-citable documents200412
Non-citable documents200515
Non-citable documents200617
Non-citable documents200721
Non-citable documents200819
Non-citable documents200918
Non-citable documents201014
Non-citable documents201111
Non-citable documents20124
Non-citable documents20132
Non-citable documents20146
Non-citable documents201511
Non-citable documents201612
Non-citable documents201710
Non-citable documents20186
Non-citable documents20196
Citable documents1999125
Citable documents2000137
Citable documents2001143
Citable documents2002134
Citable documents2003129
Citable documents2004138
Citable documents2005199
Citable documents2006239
Citable documents2007287
Citable documents2008291
Citable documents2009324
Citable documents2010319
Citable documents2011299
Citable documents2012279
Citable documents2013260
Citable documents2014270
Citable documents2015261
Citable documents2016254
Citable documents2017247
Citable documents2018243
Citable documents2019239
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 documents199933
Uncited documents200029
Uncited documents200132
Uncited documents200227
Uncited documents200326
Uncited documents200420
Uncited documents200538
Uncited documents200629
Uncited documents200725
Uncited documents200829
Uncited documents200937
Uncited documents201031
Uncited documents201132
Uncited documents201223
Uncited documents201323
Uncited documents201437
Uncited documents201544
Uncited documents201644
Uncited documents201742
Uncited documents201849
Uncited documents201955
Cited documents199995
Cited documents2000117
Cited documents2001122
Cited documents2002117
Cited documents2003113
Cited documents2004130
Cited documents2005176
Cited documents2006227
Cited documents2007283
Cited documents2008281
Cited documents2009305
Cited documents2010302
Cited documents2011278
Cited documents2012260
Cited documents2013239
Cited documents2014239
Cited documents2015228
Cited documents2016222
Cited documents2017215
Cited documents2018200
Cited documents2019190
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