{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Attention&page=2",
    "query": {
      "condition": "Visual Attention",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Attention&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T09:04:59.713Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT00111293",
      "title": "Attention and Visual Perception",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Focal Lesions",
        "Focal Brain Lesion"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 8,
      "start_date": "2005-05-16",
      "completion_date": "2010-05-14",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-05-22T09:04:59.713Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00111293"
    },
    {
      "nct_id": "NCT05003063",
      "title": "Effects of Acetylcholine and Attention on Visual Spatial Representations in the Brain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Visual Perception",
        "Attention",
        "Information Processing",
        "Cholinergic System"
      ],
      "interventions": [
        {
          "name": "Donepzil",
          "type": "DRUG"
        },
        {
          "name": "Placebo oral tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Berkeley",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 12,
      "start_date": "2021-02-04",
      "completion_date": "2021-08-02",
      "has_results": false,
      "last_update_posted_date": "2021-08-12",
      "last_synced_at": "2026-05-22T09:04:59.713Z",
      "location_count": 1,
      "location_summary": "Berkeley, California",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05003063"
    },
    {
      "nct_id": "NCT04428931",
      "title": "Attentional Performance in Parkinson Disease",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Neurological Disorders and Stroke (NINDS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "35 Years to 80 Years"
      },
      "enrollment_count": 0,
      "start_date": "2021-12-06",
      "completion_date": "2021-12-06",
      "has_results": false,
      "last_update_posted_date": "2021-12-10",
      "last_synced_at": "2026-05-22T09:04:59.713Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04428931"
    },
    {
      "nct_id": "NCT05863715",
      "title": "Working Memory Quality of Attentional Templates",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Visual Search Cue Type",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Lehigh University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2022-09-27",
      "completion_date": "2022-11-17",
      "has_results": false,
      "last_update_posted_date": "2023-05-18",
      "last_synced_at": "2026-05-22T09:04:59.713Z",
      "location_count": 1,
      "location_summary": "Bethlehem, Pennsylvania",
      "locations": [
        {
          "city": "Bethlehem",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05863715"
    },
    {
      "nct_id": "NCT06733467",
      "title": "Probing the Role of Feature Dimension Maps in Visual Cognition: Impact of Working Memory Maintenance (Expt 2.3)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Basic Science: Visual Attention in Healthy Participants",
        "Basic Science: Neural Representations of Location"
      ],
      "interventions": [
        {
          "name": "Stimulus properties: remembered feature",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Santa Barbara",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 10,
      "start_date": "2023-04-16",
      "completion_date": "2025-02-05",
      "has_results": false,
      "last_update_posted_date": "2025-04-22",
      "last_synced_at": "2026-05-22T09:04:59.713Z",
      "location_count": 1,
      "location_summary": "Santa Barbara, California",
      "locations": [
        {
          "city": "Santa Barbara",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06733467"
    },
    {
      "nct_id": "NCT02770105",
      "title": "Theanine and Caffeine on Neurophysiology of Attention",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "L-theanine"
      ],
      "interventions": [
        {
          "name": "Theanine",
          "type": "OTHER"
        },
        {
          "name": "Caffeine",
          "type": "OTHER"
        },
        {
          "name": "Theanine-Caffeine Combination",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Texas Tech University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "MALE",
        "summary": "18 Years to 60 Years · Male only"
      },
      "enrollment_count": 9,
      "start_date": "2016-05",
      "completion_date": "2016-06",
      "has_results": false,
      "last_update_posted_date": "2016-09-02",
      "last_synced_at": "2026-05-22T09:04:59.713Z",
      "location_count": 1,
      "location_summary": "Lubbock, Texas",
      "locations": [
        {
          "city": "Lubbock",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02770105"
    },
    {
      "nct_id": "NCT04964674",
      "title": "Psychometric Testing and Cue Utilization During Cued Visual Search",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Behavioral Measurement",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Lehigh University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 122,
      "start_date": "2021-04-12",
      "completion_date": "2022-08-27",
      "has_results": false,
      "last_update_posted_date": "2024-09-27",
      "last_synced_at": "2026-05-22T09:04:59.713Z",
      "location_count": 1,
      "location_summary": "Bethlehem, Pennsylvania",
      "locations": [
        {
          "city": "Bethlehem",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04964674"
    },
    {
      "nct_id": "NCT03880227",
      "title": "Improving Visual Attention in Schizophrenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Schizophrenia",
        "Schizoaffective Disorder"
      ],
      "interventions": [
        {
          "name": "Active anodal tDCS",
          "type": "DEVICE"
        },
        {
          "name": "Sham tDCS",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The University of Texas at Dallas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 81,
      "start_date": "2019-03-25",
      "completion_date": "2020-03-04",
      "has_results": true,
      "last_update_posted_date": "2021-07-13",
      "last_synced_at": "2026-05-22T09:04:59.713Z",
      "location_count": 1,
      "location_summary": "Richardson, Texas",
      "locations": [
        {
          "city": "Richardson",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03880227"
    },
    {
      "nct_id": "NCT06852534",
      "title": "Probing the Role of Feature Dimension Maps in Visual Cognition: Impact of Salience Level (Eye-tracking Follow-up Study)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Basic Science: Visual Attention in Healthy Participants",
        "Attention"
      ],
      "interventions": [
        {
          "name": "Stimulus properties: salience-defining feature",
          "type": "OTHER"
        },
        {
          "name": "Stimulus properties: magnitude of salience",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Santa Barbara",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 20,
      "start_date": "2024-11-22",
      "completion_date": "2025-04-02",
      "has_results": true,
      "last_update_posted_date": "2026-05-11",
      "last_synced_at": "2026-05-22T09:04:59.713Z",
      "location_count": 1,
      "location_summary": "Santa Barbara, California",
      "locations": [
        {
          "city": "Santa Barbara",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06852534"
    },
    {
      "nct_id": "NCT05784233",
      "title": "Relevance and Salience During Attention Task",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Relevance (Likelihood Salient Item is Target)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Lehigh University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 117,
      "start_date": "2022-09-15",
      "completion_date": "2022-10-28",
      "has_results": false,
      "last_update_posted_date": "2024-02-02",
      "last_synced_at": "2026-05-22T09:04:59.713Z",
      "location_count": 1,
      "location_summary": "Bethlehem, Pennsylvania",
      "locations": [
        {
          "city": "Bethlehem",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05784233"
    }
  ]
}