A Preliminary Analysis of Sleep-Like States in the Cuttlefish Sepia officinalis
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{"title"=>"A preliminary analysis of sleep-like states in the cuttlefish Sepia officinalis", "type"=>"journal", "authors"=>[{"first_name"=>"Marcos G.", "last_name"=>"Frank", "scopus_author_id"=>"7402460269"}, {"first_name"=>"Robert H.", "last_name"=>"Waldrop", "scopus_author_id"=>"55246778800"}, {"first_name"=>"Michelle", "last_name"=>"Dumoulin", "scopus_author_id"=>"22952879800"}, {"first_name"=>"Sara", "last_name"=>"Aton", "scopus_author_id"=>"6508043997"}, {"first_name"=>"Jean G.", "last_name"=>"Boal", "scopus_author_id"=>"7003468522"}], "year"=>2012, "source"=>"PLoS ONE", "identifiers"=>{"pui"=>"364979269", "sgr"=>"84862003005", "issn"=>"19326203", "pmid"=>"22701609", "scopus"=>"2-s2.0-84862003005", "doi"=>"10.1371/journal.pone.0038125", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)"}, "id"=>"dbbf1c14-9ebb-3099-8bcd-9dfa327d008e", "abstract"=>"Sleep has been observed in several invertebrate species, but its presence in marine invertebrates is relatively unexplored. Rapid-eye-movement (REM) sleep has only been observed in vertebrates. We investigated whether the cuttlefish Sepia officinalis displays sleep-like states. We find that cuttlefish exhibit frequent quiescent periods that are homeostatically regulated, satisfying two criteria for sleep. In addition, cuttlefish transiently display a quiescent state with rapid eye movements, changes in body coloration and twitching of the arms, that is possibly analogous to REM sleep. Our findings thus suggest that at least two different sleep-like states may exist in Sepia officinalis.", "link"=>"http://www.mendeley.com/research/preliminary-analysis-sleeplike-states-cuttlefish-sepia-officinalis", "reader_count"=>37, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>4, "Researcher"=>6, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>9, "Student > Postgraduate"=>1, "Student > Master"=>6, "Student > Bachelor"=>6, "Professor"=>3}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>4, "Researcher"=>6, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>9, "Student > Postgraduate"=>1, "Student > Master"=>6, "Student > Bachelor"=>6, "Professor"=>3}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Environmental Science"=>3, "Agricultural and Biological Sciences"=>24, "Neuroscience"=>3, "Physics and Astronomy"=>1, "Psychology"=>1, "Chemistry"=>1, "Computer Science"=>1, "Immunology and Microbiology"=>1}, "reader_count_by_subdiscipline"=>{"Neuroscience"=>{"Neuroscience"=>3}, "Chemistry"=>{"Chemistry"=>1}, "Physics and Astronomy"=>{"Physics and Astronomy"=>1}, "Psychology"=>{"Psychology"=>1}, "Immunology and Microbiology"=>{"Immunology and Microbiology"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>24}, "Computer Science"=>{"Computer Science"=>1}, "Unspecified"=>{"Unspecified"=>2}, "Environmental Science"=>{"Environmental Science"=>3}}, "reader_count_by_country"=>{"United States"=>4, "France"=>1}, "group_count"=>2}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/627889"], "description"=>"<p>Dendrogram similarity scores range from 100% to −100% and are equivalent to Pearson or Spearman R values of “1” or “−1”.</p>", "links"=>[], "tags"=>["coefficient", "patterning", "components", "putative", "sleep-like", "cuttlefish"], "article_id"=>298371, "categories"=>["Physiology", "Inorganic Chemistry", "Neuroscience"], "users"=>["Marcos G. Frank", "Robert H. Waldrop", "Michelle Dumoulin", "Sara Aton", "Jean G. Boal"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0038125.g003", "stats"=>{"downloads"=>1, "page_views"=>47, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Dendrograms_showing_correlation_coefficient_distance_Ward_Linkage_between_body_patterning_components_during_the_putative_sleep_like_state_CA_in_three_adult_senescent_cuttlefish_A_8220_C_check_8221_B_8220_Tiny_8221_C_8220_KY_8221_/298371", "title"=>"Dendrograms showing correlation coefficient distance (Ward Linkage) between body patterning components during the putative sleep-like state+CA in three adult/senescent cuttlefish (A: “C-check”; B: “Tiny”; C: “KY”).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-06-06 02:19:31"}
  • {"files"=>["https://ndownloader.figshare.com/files/325363", "https://ndownloader.figshare.com/files/325483"], "description"=>"<div><p>Sleep has been observed in several invertebrate species, but its presence in marine invertebrates is relatively unexplored. Rapid-eye-movement (REM) sleep has only been observed in vertebrates. We investigated whether the cuttlefish <em>Sepia officinalis</em> displays sleep-like states. We find that cuttlefish exhibit frequent quiescent periods that are homeostatically regulated, satisfying two criteria for sleep. In addition, cuttlefish transiently display a quiescent state with rapid eye movements, changes in body coloration and twitching of the arms, that is possibly analogous to REM sleep. Our findings thus suggest that at least two different sleep-like states may exist in <em>Sepia officinalis</em>.</p> </div>", "links"=>[], "tags"=>["sleep-like", "states", "cuttlefish"], "article_id"=>124226, "categories"=>["Physiology", "Inorganic Chemistry", "Neuroscience"], "users"=>["Marcos G. Frank", "Robert H. Waldrop", "Michelle Dumoulin", "Sara Aton", "Jean G. Boal"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0038125.s001", "https://dx.doi.org/10.1371/journal.pone.0038125.s002"], "stats"=>{"downloads"=>0, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/A_Preliminary_Analysis_of_Sleep_Like_States_in_the_Cuttlefish_Sepia_officinalis_/124226", "title"=>"A Preliminary Analysis of Sleep-Like States in the Cuttlefish <em>Sepia officinalis</em>", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2012-06-06 01:10:26"}
  • {"files"=>["https://ndownloader.figshare.com/files/627804"], "description"=>"<p>Video still frames from a representative adult/senescent cuttlefish exhibiting changing chromatophore activity during quiescence. These 4 frames show 10 second, sequential frames beginning with quiescence (0:00) and 30 seconds of the sleep-like state+CA. The camera was positioned vertically over the animal, resting on the gravel bed; the front of the animal is pointed towards the upper right corner. Changes in chromatophore components include a darkening of the body and a disappearance of a white eye-bar (0:00–0:10), a lightening of the body, the appearance of a white square (0:10–0:20) and a subsequent disappearance of the white square (0:20–0:30). Body color components as defined as described by Hanlon et al <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0038125#pone.0038125-Hanlon2\" target=\"_blank\">[20]</a>. See supporting information (<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0038125#pone.0038125.s001\" target=\"_blank\">Videos S1</a>,<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0038125#pone.0038125.s002\" target=\"_blank\">S2</a>) for representative videos of this sleep-like state+CA.</p>", "links"=>[], "tags"=>["putative", "sleep-like", "chromatophore", "cuttlefish"], "article_id"=>298297, "categories"=>["Physiology", "Inorganic Chemistry", "Neuroscience"], "users"=>["Marcos G. Frank", "Robert H. Waldrop", "Michelle Dumoulin", "Sara Aton", "Jean G. Boal"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0038125.g002", "stats"=>{"downloads"=>0, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_A_putative_sleep_like_state_with_chromatophore_activity_CA_in_the_cuttlefish_Sepia_officinalis_/298297", "title"=>"A putative sleep-like state with chromatophore activity (CA) in the cuttlefish <i>Sepia officinalis</i>.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-06-06 02:18:17"}
  • {"files"=>["https://ndownloader.figshare.com/files/627659"], "description"=>"<p>Cuttlefish exhibit clear periods of activity where the animals actively swim (A) or hover (B) and periods of quiescence (C) where they lie on the surface or are partly buried in gravel bedding with closed eyes. An adult/senescent animal is shown.</p>", "links"=>[], "tags"=>["arousal", "quiescence", "cuttlefish"], "article_id"=>298149, "categories"=>["Physiology", "Inorganic Chemistry", "Neuroscience"], "users"=>["Marcos G. Frank", "Robert H. Waldrop", "Michelle Dumoulin", "Sara Aton", "Jean G. Boal"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0038125.g001", "stats"=>{"downloads"=>1, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_States_of_arousal_and_quiescence_in_the_cuttlefish_Sepia_officinalis_/298149", "title"=>"States of arousal and quiescence in the cuttlefish <i>Sepia officinalis</i>.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-06-06 02:15:49"}
  • {"files"=>["https://ndownloader.figshare.com/files/627994"], "description"=>"<p>Five juvenile cuttlefish were sleep deprived for 48 hours by continuous visual stimulation via a computer monitor positioned beneath their aquarium. During the following 24 hour recovery period, there was an overall compensatory increase in quiescence as revealed by a main effect of condition (baseline rest vs. after rest deprivation) in a 2 way ANOVA (Time and Condition as main factors): Condition: F = 6.3, p<0.013, Time: F = 9.6 p<0.001, interaction: F = 1.3, p = 0.18). Data are hourly mean (± std. deviation) behavioral scores.</p>", "links"=>[], "tags"=>["deprivation", "cuttlefish"], "article_id"=>298483, "categories"=>["Physiology", "Inorganic Chemistry", "Neuroscience"], "users"=>["Marcos G. Frank", "Robert H. Waldrop", "Michelle Dumoulin", "Sara Aton", "Jean G. Boal"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0038125.g004", "stats"=>{"downloads"=>0, "page_views"=>8, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Quiescence_sleep_deprivation_in_the_cuttlefish_Sepia_officinalis_/298483", "title"=>"Quiescence (sleep) deprivation in the cuttlefish <i>Sepia officinalis</i>.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-06-06 02:21:23"}
  • {"files"=>["https://ndownloader.figshare.com/files/628059"], "description"=>"*<p>Student's t-test, p<0.05 Day vs. night.</p>‡<p>p<0.05 senescent vs. juvenile.</p>", "links"=>[], "tags"=>["juvenile"], "article_id"=>298553, "categories"=>["Physiology", "Inorganic Chemistry", "Neuroscience"], "users"=>["Marcos G. Frank", "Robert H. Waldrop", "Michelle Dumoulin", "Sara Aton", "Jean G. Boal"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0038125.t001", "stats"=>{"downloads"=>3, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Quiescence_in_adult_senescent_and_juvenile_Sepia_officinalis_/298553", "title"=>"Quiescence in adult/senescent and juvenile <i>Sepia officinalis</i>.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2012-06-06 02:22:33"}

PMC Usage Stats | Further Information

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  • {"unique-ip"=>"10", "full-text"=>"11", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"9"}
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Relative Metric

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