Estimating Information Processing in a Memory System: The Utility of Meta-analytic Methods for Genetics
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{"title"=>"Estimating Information Processing in a Memory System: The Utility of Meta-analytic Methods for Genetics", "type"=>"journal", "authors"=>[{"first_name"=>"Tugce", "last_name"=>"Yildizoglu", "scopus_author_id"=>"57039103800"}, {"first_name"=>"Jan Marek", "last_name"=>"Weislogel", "scopus_author_id"=>"6507730879"}, {"first_name"=>"Farhan", "last_name"=>"Mohammad", "scopus_author_id"=>"57038334000"}, {"first_name"=>"Edwin S.Y.", "last_name"=>"Chan", "scopus_author_id"=>"56498442100"}, {"first_name"=>"Pryseley N.", "last_name"=>"Assam", "scopus_author_id"=>"22833516100"}, {"first_name"=>"Adam", "last_name"=>"Claridge-Chang", "scopus_author_id"=>"6507038344"}], "year"=>2015, "source"=>"PLoS Genetics", "identifiers"=>{"issn"=>"15537404", "scopus"=>"2-s2.0-84953311021", "pmid"=>"26647168", "doi"=>"10.1371/journal.pgen.1005718", "pui"=>"607579361", "sgr"=>"84953311021"}, "id"=>"5eb06976-deb1-33f5-9318-6e3794501033", "abstract"=>"Genetic studies in Drosophila reveal that olfactory memory relies on a brain structure called the mushroom body. The mainstream view is that each of the three lobes of the mushroom body play specialized roles in short-term aversive olfactory memory, but a number of studies have made divergent conclusions based on their varying experimental findings. Like many fields, neurogenetics uses null hypothesis significance testing for data analysis. Critics of significance testing claim that this method promotes discrepancies by using arbitrary thresholds (α) to apply reject/accept dichotomies to continuous data, which is not reflective of the biological reality of quantitative phenotypes. We explored using estimation statistics, an alternative data analysis framework, to examine published fly short-term memory data. Systematic review was used to identify behavioral experiments examining the physiological basis of olfactory memory and meta-analytic approaches were applied to assess the role of lobular specialization. Multivariate meta-regression models revealed that short-term memory lobular specialization is not supported by the data; it identified the cellular extent of a transgenic driver as the major predictor of its effect on short-term memory. These findings demonstrate that effect sizes, meta-analysis, meta-regression, hierarchical models and estimation methods in general can be successfully harnessed to identify knowledge gaps, synthesize divergent results, accommodate heterogeneous experimental design and quantify genetic mechanisms.", "link"=>"http://www.mendeley.com/research/estimating-information-processing-memory-system-utility-metaanalytic-methods-genetics", "reader_count"=>17, "reader_count_by_academic_status"=>{"Researcher"=>9, "Student > Ph. D. Student"=>4, "Student > Postgraduate"=>2, "Professor"=>2}, "reader_count_by_user_role"=>{"Researcher"=>9, "Student > Ph. D. Student"=>4, "Student > Postgraduate"=>2, "Professor"=>2}, "reader_count_by_subject_area"=>{"Biochemistry, Genetics and Molecular Biology"=>1, "Agricultural and Biological Sciences"=>9, "Neuroscience"=>5, "Business, Management and Accounting"=>1, "Immunology and Microbiology"=>1}, "reader_count_by_subdiscipline"=>{"Neuroscience"=>{"Neuroscience"=>5}, "Immunology and Microbiology"=>{"Immunology and Microbiology"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>9}, "Business, Management and Accounting"=>{"Business, Management and Accounting"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}}, "reader_count_by_country"=>{"United States"=>1, "Japan"=>1, "Chile"=>1}, "group_count"=>0}

Scopus | Further Information

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/4426963"], "description"=>"<p><b>A.</b> Flow chart of systematic literature review procedure. The literature was reviewed in a five stage process, starting with a PubMed search that yielded 279 articles, followed by four screens of increasing detail, reviewing the article title, abstract full text and experimental design. A total of ten articles, two of which included relevant data for both rutabaga and shibirets experiments, were used in the meta-analyses. <b>B.</b> Histogram of performance indices for all control experiments identified by the review.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621581, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g001"], "stats"=>{"downloads"=>0, "page_views"=>1, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Review_overview_/1621581", "title"=>"Review overview.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4426981"], "description"=>"<p>Short-term memory data are expressed as percentages. <b>A.</b> A summary forest plot of learning changes observed in 340 experiments with <i>rut</i> mutant lines, with subgroups showing the differences between the various <i>rut</i> alleles and strains. Learning is expressed as a percentage change relative to wild type. The red diamond on the bottom line indicates that the overall impairment in learning in the <i>rut</i> hypomorphs relative to wild type controls is -60% [95CI -56%, -64%]. The complete forest plot is given in <a href=\"http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1005718#pgen.1005718.g003\" target=\"_blank\">Fig 3</a>. <b>B.</b> Summary estimates from the <i>rut</i> mutant meta-analysis and five meta-analyses of lobular restoration experiments. Learning is displayed as a percentage of wild type learning. The markers indicate the proportion of learning relative to wild type expressed as a percentage; error bars are 95% confidence intervals. To the right of the markers are numbers for the amount of rescue (R =) relative to the rut hypomorphs. N(E) and N(C) are the experimental and control iterations respectively. Except for the α′β′ lobes (p = 0.17), all lobe categories showed a statistically significant partial rescue of learning (αβ p = 0.029, γ p<1 x 10–45, αβ+γ p = 1.1 x 10–16, all lobes p<1 x 10–45) when compared with rut learning.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621582, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g002"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Meta_analyses_of_rutabaga_mutant_lines_and_targeted_transgenic_restoration_/1621582", "title"=>"Meta-analyses of <i>rutabaga</i> mutant lines and targeted transgenic restoration.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4426996"], "description"=>"<p>Each data set is identified by the source article and figure panel. This figure is a detailed version of the same plot in the main article, but uses proportional reductions instead of percentage changes. The subgroups are different driver lines, the red diamond indicates the overall estimated value range for the percentage change relative to control.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621583, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g003"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Forest_plot_of_rut_mutant_learning_changes_/1621583", "title"=>"Forest plot of <i>rut</i> mutant learning changes.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4427005"], "description"=>"<p>Each data set is identified by the source article and figure panel. The subgroups are different driver lines, the red diamond indicates the overall estimated value range for the proportional change relative to control.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621584, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g004"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Forest_plot_of_rut_restoration_in_the_lobes_/1621584", "title"=>"Forest plot of <i>rut</i> restoration in the αβ lobes.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4427017"], "description"=>"<p>Each data set is identified by the source article and figure panel. The subgroups are different driver lines, the red diamond indicates the overall estimated value range for the proportional change relative to control.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621585, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g005"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Forest_plot_of_rut_restoration_in_the__lobes_/1621585", "title"=>"Forest plot of <i>rut</i> restoration in the α′β′ lobes.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4296343"], "description"=>"<p>Each data set is identified by the source article and figure panel. The subgroups are different driver lines, the red diamond indicates the overall estimated value range for the proportional change relative to control.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621586, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>"https://dx.doi.org/10.1371/journal.pgen.1005718.g006", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Forest_plot_of_rut_restoration_in_the_lobes_/1621586", "title"=>"Forest plot of <i>rut</i> restoration in the γ lobes.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4427035"], "description"=>"<p>Each data set is identified by the source article and figure panel. The subgroups are different driver lines, the red diamond indicates the overall estimated value range for the proportional change relative to control.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621587, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g007"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Forest_plot_of_rut_restoration_in_the_and_lobes_/1621587", "title"=>"Forest plot of <i>rut</i> restoration in the αβ and γ lobes.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4427041"], "description"=>"<p>Each data set is identified by the source article and figure panel. The subgroups are different driver lines, the red diamond indicates the overall estimated value range for the proportional change relative to control.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621588, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g008"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Forest_plot_of_rut_restoration_in_all_lobes_of_the_mushroom_body_/1621588", "title"=>"Forest plot of <i>rut</i> restoration in all lobes of the mushroom body.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4427050"], "description"=>"<p>Learning data are expressed as percentages. <b>A.</b> A summary forest plot of learning changes in heat treatment controls, with subgroups showing the differences between 3 types of controls. Learning is expressed as a percentage change relative to wild type. The red diamond on the bottom line indicates that the overall impairment in learning in flies exposed to elevated temperature is -17% [95CI -12%, -22%]. A complete forest plot is shown in <a href=\"http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1005718#pgen.1005718.g010\" target=\"_blank\">Fig 10</a>. <b>B.</b> Summary estimates from the heat exposure controls and three meta-analyses of lobular inactivation experiments. Colored markers correspond to diamonds in panel A. Learning at the restrictive temperature is shown as a percentage of learning at the permissive temperature; error bars are 95% confidence intervals. To the right of the markers are numbers learning impairment (∆* =) relative to the synthetic heat effect control. N(R) and N(P) are the restrictive and permissive iterations respectively. The αβ lobes (p = 0.0001) and the αβ+γ combination (p<1 x 10–45) show statistically significant impairment while the γ lobes do not (p = 0.7071). The γ lobe bar is in grey as it derives from only a single experiment with few replicates. There were no data in the literature on the α′β′ lobes or drivers that encompass all mushroom body lobes.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621589, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g009"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Meta_analyses_of_shibire_ts_inhibition_of_neurotransmission_in_the_mushroom_body_lobes_/1621589", "title"=>"Meta-analyses of <i>shibire</i><sup><i>ts</i></sup> inhibition of neurotransmission in the mushroom body lobes.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4427062"], "description"=>"<p>This figure is a detailed version of the same plot in the previous figure, but uses proportional reductions instead of percentage changes. The source article and figure panel identifies each data set. The subgroups are different driver lines, the red diamond indicates the overall estimated value range for the proportional change relative to control.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621590, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g010"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Forest_plot_of_the_effect_on_STM_of_elevating_flies_from_permissive_to_restrictive_temperatures_/1621590", "title"=>"Forest plot of the effect on STM of elevating flies from permissive to restrictive temperatures.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4427068"], "description"=>"<p>Each data set is identified by the source article and figure panel. The subgroups are different driver lines, the red diamond indicates the overall estimated value range for the proportional change relative to control.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621591, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g011"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Forest_plot_of_experiments_using_shi_ts_to_inactivate_neurotransmission_from_the_lobes_/1621591", "title"=>"Forest plot of experiments using <i>shi</i><sup><i>ts</i></sup> to inactivate neurotransmission from the αβ lobes.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4427080"], "description"=>"<p>Each data set is identified by the source article and figure panel. The subgroups are different driver lines, the red diamond indicates the overall estimated value range for the proportional change relative to control.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621592, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g012"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Forest_plot_of_experiments_using_shi_ts_to_inactivate_neurotransmission_from_the__lobes_/1621592", "title"=>"Forest plot of experiments using <i>shi</i><sup><i>ts</i></sup> to inactivate neurotransmission from the αβ + γ lobes.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4427086"], "description"=>"<p>The estimated Kenyon cell counts for drivers were taken from Aso et al. 2009. The memory effect sizes are derived from nested, weighted, multivariate meta-regression models that adjusted for confounding variables that contributed to heterogeneity. <b>A.</b> Bubble plot of <i>rut</i> restoration; the cell count of driver lines accounts for 84% of the variance of the learning effects of rut restoration (p < 0.0001). Each bubble’s area indicates that estimate’s weight in the regression model; the blue fit line has a slope of 0.023% per cell [95CI 0.016, 0.030]. The grey line indicates the level of no rescue, i.e. the learning level of <i>rut</i> mutants. <b>B.</b> For <i>shi</i><sup><i>ts</i></sup> inactivation, 88% of the learning variance is attributable to the number of cells encompassed by the driver (p < 0.0001). The blue fit line has a slope of -0.034% per cell [95CI -0.046, -0.0216]; the grey line indicates the level of no effect, i.e. the learning expected from the effect of heat alone. <b>C.</b> Learning effect per cell in mushroom body sub-regions from <i>rut</i> restoration in different lobes and combinations, adjusted for heterogeneity effects. Error bars are confidence intervals; there are no statistical differences between rut lobe categories. <b>D.</b> The <i>shi</i><sup><i>ts</i></sup> learning effect per cell in two lobes and their combination. There are no statistical differences between <i>shi</i><sup><i>ts</i></sup> lobe categories.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621593, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.g013"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_The_extent_of_drivers_8217_Kenyon_cell_expression_accounts_for_the_majority_of_short_term_olfactory_memory_effects_/1621593", "title"=>"The extent of drivers’ Kenyon cell expression accounts for the majority of short-term olfactory memory effects.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4427101"], "description"=>"<p>All experiments are listed and identified by their study, figure panel and genotype/s. We name the most precise genotype possible based on the information given in the original article. Odor pair, range experimental temperature or temperature range, the nature of the conditioning shock and the relative humidity (RH) are also listed. The time delay between training and testing is listed in minutes; those labelled ‘0*’ were reported as following training ‘immediately.’ Shock is listed in volts; current type is omitted if not reported in the original study. Cells containing a dash indicate that the information was not found in the original article.</p>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621594, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.t001"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Characteristics_of_included_experiments_/1621594", "title"=>"Characteristics of included experiments.", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/4426930", "https://ndownloader.figshare.com/files/4426948"], "description"=>"<div><p>Genetic studies in <i>Drosophila</i> reveal that olfactory memory relies on a brain structure called the mushroom body. The mainstream view is that each of the three lobes of the mushroom body play specialized roles in short-term aversive olfactory memory, but a number of studies have made divergent conclusions based on their varying experimental findings. Like many fields, neurogenetics uses null hypothesis significance testing for data analysis. Critics of significance testing claim that this method promotes discrepancies by using arbitrary thresholds (α) to apply reject/accept dichotomies to continuous data, which is not reflective of the biological reality of quantitative phenotypes. We explored using estimation statistics, an alternative data analysis framework, to examine published fly short-term memory data. Systematic review was used to identify behavioral experiments examining the physiological basis of olfactory memory and meta-analytic approaches were applied to assess the role of lobular specialization. Multivariate meta-regression models revealed that short-term memory lobular specialization is not supported by the data; it identified the cellular extent of a transgenic driver as the major predictor of its effect on short-term memory. These findings demonstrate that effect sizes, meta-analysis, meta-regression, hierarchical models and estimation methods in general can be successfully harnessed to identify knowledge gaps, synthesize divergent results, accommodate heterogeneous experimental design and quantify genetic mechanisms.</p></div>", "links"=>[], "tags"=>["significance testing claim", "alternative data analysis framework", "hypothesis significance testing", "Genetics Genetic studies", "mushroom body"], "article_id"=>1621595, "categories"=>["Genetics", "Molecular Biology", "Neuroscience", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified", "Science Policy"], "users"=>["Tugce Yildizoglu", "Jan-Marek Weislogel", "Farhan Mohammad", "Edwin S.-Y. Chan", "Pryseley N. Assam", "Adam Claridge-Chang"], "doi"=>["https://dx.doi.org/10.1371/journal.pgen.1005718.s001", "https://dx.doi.org/10.1371/journal.pgen.1005718.s002"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Estimating_Information_Processing_in_a_Memory_System_The_Utility_of_Meta_analytic_Methods_for_Genetics_/1621595", "title"=>"Estimating Information Processing in a Memory System: The Utility of Meta-analytic Methods for Genetics", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-12-08 13:19:00"}

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{"start_date"=>"2015-01-01T00:00:00Z", "end_date"=>"2015-12-31T00:00:00Z", "subject_areas"=>[]}
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