{
"unit": "publication count",
"papers": [
{
"doi": "pubmed_count_query",
"label": "dopamine × prefrontal cortex",
"value": 3344,
"n_analyzed": 3344,
"n_definition": "publication count from PubMed",
"scope_region": "prefrontal cortex",
"taxonomic_level": "all species",
"scope_population": "publications studying dopamine in prefrontal cortex",
"value_source_sentence": "PubMed search 'dopamine AND prefrontal cortex AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 3344 results"
},
{
"doi": "pubmed_count_query",
"label": "dopamine × visual cortex",
"value": 224,
"n_analyzed": 224,
"n_definition": "publication count from PubMed",
"scope_region": "visual cortex",
"taxonomic_level": "all species",
"scope_population": "publications studying dopamine in visual cortex",
"value_source_sentence": "PubMed search 'dopamine AND visual cortex AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 224 results"
},
{
"doi": "pubmed_count_query",
"label": "dopamine × hippocampus",
"value": 2621,
"n_analyzed": 2621,
"n_definition": "publication count from PubMed",
"scope_region": "hippocampus",
"taxonomic_level": "all species",
"scope_population": "publications studying dopamine in hippocampus",
"value_source_sentence": "PubMed search 'dopamine AND hippocampus AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 2621 results"
},
{
"doi": "pubmed_count_query",
"label": "dopamine × amygdala",
"value": 1116,
"n_analyzed": 1116,
"n_definition": "publication count from PubMed",
"scope_region": "amygdala",
"taxonomic_level": "all species",
"scope_population": "publications studying dopamine in amygdala",
"value_source_sentence": "PubMed search 'dopamine AND amygdala AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 1116 results"
},
{
"doi": "pubmed_count_query",
"label": "dopamine × striatum",
"value": 11002,
"n_analyzed": 11002,
"n_definition": "publication count from PubMed",
"scope_region": "striatum",
"taxonomic_level": "all species",
"scope_population": "publications studying dopamine in striatum",
"value_source_sentence": "PubMed search 'dopamine AND striatum AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 11002 results"
},
{
"doi": "pubmed_count_query",
"label": "dopamine × cerebellum",
"value": 529,
"n_analyzed": 529,
"n_definition": "publication count from PubMed",
"scope_region": "cerebellum",
"taxonomic_level": "all species",
"scope_population": "publications studying dopamine in cerebellum",
"value_source_sentence": "PubMed search 'dopamine AND cerebellum AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 529 results"
},
{
"doi": "pubmed_count_query",
"label": "serotonin × prefrontal cortex",
"value": 1902,
"n_analyzed": 1902,
"n_definition": "publication count from PubMed",
"scope_region": "prefrontal cortex",
"taxonomic_level": "all species",
"scope_population": "publications studying serotonin in prefrontal cortex",
"value_source_sentence": "PubMed search 'serotonin AND prefrontal cortex AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 1902 results"
},
{
"doi": "pubmed_count_query",
"label": "serotonin × visual cortex",
"value": 149,
"n_analyzed": 149,
"n_definition": "publication count from PubMed",
"scope_region": "visual cortex",
"taxonomic_level": "all species",
"scope_population": "publications studying serotonin in visual cortex",
"value_source_sentence": "PubMed search 'serotonin AND visual cortex AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 149 results"
},
{
"doi": "pubmed_count_query",
"label": "serotonin × hippocampus",
"value": 2934,
"n_analyzed": 2934,
"n_definition": "publication count from PubMed",
"scope_region": "hippocampus",
"taxonomic_level": "all species",
"scope_population": "publications studying serotonin in hippocampus",
"value_source_sentence": "PubMed search 'serotonin AND hippocampus AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 2934 results"
},
{
"doi": "pubmed_count_query",
"label": "serotonin × amygdala",
"value": 1010,
"n_analyzed": 1010,
"n_definition": "publication count from PubMed",
"scope_region": "amygdala",
"taxonomic_level": "all species",
"scope_population": "publications studying serotonin in amygdala",
"value_source_sentence": "PubMed search 'serotonin AND amygdala AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 1010 results"
},
{
"doi": "pubmed_count_query",
"label": "serotonin × striatum",
"value": 1626,
"n_analyzed": 1626,
"n_definition": "publication count from PubMed",
"scope_region": "striatum",
"taxonomic_level": "all species",
"scope_population": "publications studying serotonin in striatum",
"value_source_sentence": "PubMed search 'serotonin AND striatum AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 1626 results"
},
{
"doi": "pubmed_count_query",
"label": "serotonin × cerebellum",
"value": 326,
"n_analyzed": 326,
"n_definition": "publication count from PubMed",
"scope_region": "cerebellum",
"taxonomic_level": "all species",
"scope_population": "publications studying serotonin in cerebellum",
"value_source_sentence": "PubMed search 'serotonin AND cerebellum AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 326 results"
},
{
"doi": "pubmed_count_query",
"label": "acetylcholine × prefrontal cortex",
"value": 523,
"n_analyzed": 523,
"n_definition": "publication count from PubMed",
"scope_region": "prefrontal cortex",
"taxonomic_level": "all species",
"scope_population": "publications studying acetylcholine in prefrontal cortex",
"value_source_sentence": "PubMed search 'acetylcholine AND prefrontal cortex AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 523 results"
},
{
"doi": "pubmed_count_query",
"label": "acetylcholine × visual cortex",
"value": 165,
"n_analyzed": 165,
"n_definition": "publication count from PubMed",
"scope_region": "visual cortex",
"taxonomic_level": "all species",
"scope_population": "publications studying acetylcholine in visual cortex",
"value_source_sentence": "PubMed search 'acetylcholine AND visual cortex AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 165 results"
},
{
"doi": "pubmed_count_query",
"label": "acetylcholine × hippocampus",
"value": 1624,
"n_analyzed": 1624,
"n_definition": "publication count from PubMed",
"scope_region": "hippocampus",
"taxonomic_level": "all species",
"scope_population": "publications studying acetylcholine in hippocampus",
"value_source_sentence": "PubMed search 'acetylcholine AND hippocampus AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 1624 results"
},
{
"doi": "pubmed_count_query",
"label": "acetylcholine × amygdala",
"value": 192,
"n_analyzed": 192,
"n_definition": "publication count from PubMed",
"scope_region": "amygdala",
"taxonomic_level": "all species",
"scope_population": "publications studying acetylcholine in amygdala",
"value_source_sentence": "PubMed search 'acetylcholine AND amygdala AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 192 results"
},
{
"doi": "pubmed_count_query",
"label": "acetylcholine × striatum",
"value": 830,
"n_analyzed": 830,
"n_definition": "publication count from PubMed",
"scope_region": "striatum",
"taxonomic_level": "all species",
"scope_population": "publications studying acetylcholine in striatum",
"value_source_sentence": "PubMed search 'acetylcholine AND striatum AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 830 results"
},
{
"doi": "pubmed_count_query",
"label": "acetylcholine × cerebellum",
"value": 148,
"n_analyzed": 148,
"n_definition": "publication count from PubMed",
"scope_region": "cerebellum",
"taxonomic_level": "all species",
"scope_population": "publications studying acetylcholine in cerebellum",
"value_source_sentence": "PubMed search 'acetylcholine AND cerebellum AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 148 results"
},
{
"doi": "pubmed_count_query",
"label": "norepinephrine × prefrontal cortex",
"value": 886,
"n_analyzed": 886,
"n_definition": "publication count from PubMed",
"scope_region": "prefrontal cortex",
"taxonomic_level": "all species",
"scope_population": "publications studying norepinephrine in prefrontal cortex",
"value_source_sentence": "PubMed search 'norepinephrine AND prefrontal cortex AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 886 results"
},
{
"doi": "pubmed_count_query",
"label": "norepinephrine × visual cortex",
"value": 85,
"n_analyzed": 85,
"n_definition": "publication count from PubMed",
"scope_region": "visual cortex",
"taxonomic_level": "all species",
"scope_population": "publications studying norepinephrine in visual cortex",
"value_source_sentence": "PubMed search 'norepinephrine AND visual cortex AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 85 results"
},
{
"doi": "pubmed_count_query",
"label": "norepinephrine × hippocampus",
"value": 1182,
"n_analyzed": 1182,
"n_definition": "publication count from PubMed",
"scope_region": "hippocampus",
"taxonomic_level": "all species",
"scope_population": "publications studying norepinephrine in hippocampus",
"value_source_sentence": "PubMed search 'norepinephrine AND hippocampus AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 1182 results"
},
{
"doi": "pubmed_count_query",
"label": "norepinephrine × amygdala",
"value": 465,
"n_analyzed": 465,
"n_definition": "publication count from PubMed",
"scope_region": "amygdala",
"taxonomic_level": "all species",
"scope_population": "publications studying norepinephrine in amygdala",
"value_source_sentence": "PubMed search 'norepinephrine AND amygdala AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 465 results"
},
{
"doi": "pubmed_count_query",
"label": "norepinephrine × striatum",
"value": 668,
"n_analyzed": 668,
"n_definition": "publication count from PubMed",
"scope_region": "striatum",
"taxonomic_level": "all species",
"scope_population": "publications studying norepinephrine in striatum",
"value_source_sentence": "PubMed search 'norepinephrine AND striatum AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 668 results"
},
{
"doi": "pubmed_count_query",
"label": "norepinephrine × cerebellum",
"value": 164,
"n_analyzed": 164,
"n_definition": "publication count from PubMed",
"scope_region": "cerebellum",
"taxonomic_level": "all species",
"scope_population": "publications studying norepinephrine in cerebellum",
"value_source_sentence": "PubMed search 'norepinephrine AND cerebellum AND (modulation OR neuromodulation) AND 2010:2026[dp]' returned 164 results"
}
],
"comparison_name": "Research coverage: Publication counts by neuromodulator × brain region (2010-2026)",
"comparison_type": "research_gap_heatmap",
"homogeneity_check": "All values are PubMed publication counts using the same query structure. Counts include all study types and species. Differences in count reflect genuine research attention gaps. Caveat: search terms may not capture all relevant papers (e.g., 'VTA' studies may not mention 'dopamine' explicitly). Counts are not normalized by total field output."
}