{
"papers": [
{
"n": 2133,
"doi": "10.1038/s41537-025-00596-z",
"value": "12",
"method": "Systematic review and meta-analysis",
"metric": "Number of studies showing gamma power increase",
"n_analyzed": 43,
"ci_or_error": null,
"text_access": "fulltext",
"n_definition": "Studies included in qualitative synthesis",
"scope_region": "Whole brain/multiple regions",
"study_system": "EEG/MEG recordings in schizophrenia",
"taxonomic_level": "gamma frequency band (30-100 Hz)",
"scope_population": "Schizophrenia patients vs controls",
"value_source_sentence": "in 12 studies gamma power was increased, involving the whole brain (N = 3), multiple regions (N = 6) or only frontal (N = 1), central (n = 1) and temporal (N = 1) areas",
"experimental_conditions": "Resting-state recordings"
},
{
"n": 2133,
"doi": "10.1038/s41537-025-00596-z",
"value": "13",
"method": "Systematic review",
"metric": "Number of studies showing no difference",
"n_analyzed": 43,
"ci_or_error": null,
"text_access": "fulltext",
"n_definition": "Studies included in qualitative synthesis",
"scope_region": "Variable",
"study_system": "EEG/MEG recordings in schizophrenia",
"taxonomic_level": "gamma frequency band (30-100 Hz)",
"scope_population": "Schizophrenia patients vs controls",
"value_source_sentence": "one study revealed mixed results and 13 studies showed no differences.",
"experimental_conditions": "Resting-state recordings"
}
],
"comparison_id": "gamma-oscillation-consistency",
"comparison_name": "Gamma oscillation findings in schizophrenia: direction and consistency of effects",
"comparison_type": "cross-study conflict",
"what_it_reveals": "The PV-interneuron-gamma-oscillation link does not translate cleanly to consistent clinical EEG/MEG findings, suggesting the cell-to-network relationship is complex and non-linear.",
"homogeneity_check": {
"caveats": [
"Studies used different EEG/MEG setups and analysis methods",
"Medication status varied across studies"
],
"n_definition_uniform": "true",
"scope_region_uniform": "false",
"taxonomic_level_uniform": "true",
"scope_population_uniform": "true"
},
"suggested_plot_type": "grouped bar"
}