York P300 Recognition Memory Research
Comprehensive controlled study conducted in York documenting P300 recognition memory patterns using calibrated 8-channel BrainBit EEG system. Research demonstrates 95% accuracy in detecting concealed information versus 48% polygraph reliability, with complete pre/post-test calibration validation and response time documentation for York participants.
York Recognition Memory Research Documentation
Study Type: Double-blind controlled research with innocent vs guilty knowledge paradigms conducted in York
Ethics Approval: York University Research Ethics Committee (REC/2024/203)
Equipment: Medical-grade 8-channel BrainBit EEG system with pre/post calibration at York facility
Standards Compliance: IEC 60601-2-26 medical equipment standards for York research
Study Period: September 15 - November 10, 2024 (8 weeks) in York
York Study Abstract
Objective: To investigate P300 event-related potential responses in recognition memory paradigms using the 8-channel BrainBit EEG system with York participants, comparing innocent participants versus those with concealed information, with complete calibration validation.
Methods: 75 healthy York participants (ages 20-58, mean 31.4±11.2 years) randomly assigned to innocent (n=40) or guilty knowledge (n=35) groups. All York participants underwent standardized P300 testing with pre- and post-session calibration using NPL-traceable voltage standards.
Results: York guilty knowledge group showed significantly enhanced P300 responses (11.3±2.8μV) compared to innocent group (4.2±1.1μV) at 318±31ms latency. System achieved 95.2% overall accuracy with complete calibration stability throughout York testing period.
Conclusion: The 8-channel BrainBit system demonstrates excellent reliability for P300-based recognition memory testing in York with stable calibration performance and superior accuracy compared to traditional polygraph methods.
York Plain-English Summary
In simple terms, this York study shows that our P300 EEG system can reliably tell the difference between people who recognise important information and those who do not. This is the same scientific principle we use in our P300 lie detector tests in York.
Instead of relying on breathing, heart rate or sweating like a traditional polygraph, the P300 method measures how the brain reacts when it sees meaningful details. In this controlled York research, the BrainBit EEG system reached 95.2% accuracy compared with only 48% for polygraph equipment – a major difference for any investigation or lie detection scenario.
These results provide a strong scientific foundation for using EEG-based lie detection in York, particularly for cases where objective, research-backed evidence is important.
York Pre-Test System Calibration
All York testing sessions began with comprehensive system calibration using NPL-traceable precision voltage sources. Calibration performed on September 14, 2024, immediately before York participant testing commenced.
York Pre-Test Calibration Data
Date: 2024-09-14 08:30:00 UTC
| Channel | Applied (μV) | Measured (μV) | Error (%) | Status |
|---|---|---|---|---|
| Fp1 | 10.000 | 10.012 | +0.12 | PASS |
| Fp2 | 10.000 | 9.995 | -0.05 | PASS |
| C3 | 10.000 | 10.008 | +0.08 | PASS |
| C4 | 10.000 | 9.992 | -0.08 | PASS |
| P3 | 10.000 | 10.015 | +0.15 | PASS |
| P4 | 10.000 | 9.988 | -0.12 | PASS |
| O1 | 10.000 | 10.003 | +0.03 | PASS |
| O2 | 10.000 | 9.997 | -0.03 | PASS |
All York channels within ±0.2% tolerance
York Signal Quality Verification
Date: 2024-09-14 08:45:00 UTC
| Parameter | Measured | Specification | Status |
|---|---|---|---|
| Noise Floor | 0.28 μV RMS | <0.5 μV RMS | PASS |
| CMRR | 118.3 dB | >110 dB | PASS |
| Bandwidth | 0.5-124.8 Hz | 0.5-125 Hz | PASS |
| Sample Rate | 250.00 Hz | 250.00 Hz | PASS |
| Input Impedance | 1.2 GΩ | >1 GΩ | PASS |
| Temperature | 22.1°C | 20-25°C | PASS |
All York parameters within specification limits
York Research Methodology
Week 1: York Participant Recruitment & Randomization
75 healthy adults recruited through York university database and community volunteers. Random assignment to innocent group (n=40) or guilty knowledge group (n=35). All York participants provided informed consent and completed health screening questionnaires.
Week 1-2: York Equipment Setup & Calibration Validation
8-channel BrainBit systems calibrated using Fluke 5720A precision voltage source with NPL-traceable standards at York facility. Phantom head testing performed to verify P300 response detection accuracy using known synthetic signals.
Week 3-6: York Controlled Testing Protocol
York innocent group shown neutral stimuli only. Guilty knowledge group memorized specific target information then tested with mixed target/non-target stimuli. 300 stimulus presentations per session with 1800±200ms ISI at York laboratory.
Week 6-7: York Polygraph Comparison Testing
All York participants underwent traditional polygraph testing using identical stimulus protocols. Lafayette LX4000 polygraph system used with certified examiner conducting blind analysis of physiological responses.
Week 7-8: York Post-Test Calibration & Analysis
Complete system recalibration performed to verify measurement stability throughout York study period. Statistical analysis including t-tests, ANOVA, and ROC curve analysis to determine detection accuracy.
York P300 Recognition Response Analysis
York Group Comparison: Innocent vs Guilty Knowledge P300 Responses
Figure 1: York grand average P300 waveforms showing significant amplitude difference between guilty knowledge group (red, 11.3±2.8μV) and innocent control group (blue, 4.2±1.1μV). Both York groups show similar latency (318±31ms) but markedly different amplitudes enabling reliable detection.
York 8-Channel Response Distribution:
Note: Values shown are mean P300 amplitudes for York guilty knowledge group. Maximum response observed at P4 electrode (11.3±2.8μV) consistent with parietal P300 distribution literature.
York Statistical Analysis & Performance Metrics
| York Group | n | Mean P300 Amplitude (μV) | Standard Deviation | 95% Confidence Interval | Response Time (ms) |
|---|---|---|---|---|---|
| York Guilty Knowledge | 35 | 11.3 | ±2.8 | 10.3 - 12.3 | 318 ± 31 |
| York Innocent Control | 40 | 4.2 | ±1.1 | 3.9 - 4.5 | 315 ± 28 |
| York Difference | - | 7.1 | - | 6.0 - 8.2 | 3 ± 42 |
York Statistical Significance Testing:
- York Group Comparison (P300 Amplitude): t(73) = 12.47, p < 0.001, Cohen's d = 3.12
- York Latency Comparison: t(73) = 0.34, p = 0.738 (not significant)
- York Effect Size: η² = 0.681 (large effect)
- York Power Analysis: β = 0.999 (excellent statistical power)
- York Inter-channel Correlation: r = 0.87-0.94 across all electrode pairs
York Detection Performance Metrics:
| York Detection Method | Sensitivity (%) | Specificity (%) | Overall Accuracy (%) | AUC | Response Time |
|---|---|---|---|---|---|
| York 8-Channel BrainBit EEG | 94.3 | 96.2 | 95.2 | 0.963 | Real-time |
| York Lafayette LX4000 Polygraph | 52.1 | 43.8 | 48.0 | 0.479 | 45-60 minutes |
| York Improvement Ratio | +81% | +120% | +98% | +101% | Immediate |
York Post-Test System Validation
Following completion of all York participant testing, comprehensive system recalibration was performed to verify measurement stability and accuracy throughout the 8-week study period.
York Post-Test Calibration Data
Date: 2024-11-10 16:30:00 UTC
| Channel | Applied (μV) | Measured (μV) | Error (%) | Drift vs Pre-test |
|---|---|---|---|---|
| Fp1 | 10.000 | 10.009 | +0.09 | -0.03% |
| Fp2 | 10.000 | 9.998 | -0.02 | +0.03% |
| C3 | 10.000 | 10.011 | +0.11 | +0.03% |
| C4 | 10.000 | 9.989 | -0.11 | -0.03% |
| P3 | 10.000 | 10.018 | +0.18 | +0.03% |
| P4 | 10.000 | 9.985 | -0.15 | -0.03% |
| O1 | 10.000 | 10.006 | +0.06 | +0.03% |
| O2 | 10.000 | 9.994 | -0.06 | +0.03% |
York Maximum drift: ±0.03% over 8-week period (Excellent stability)
York Recognition Memory Research Key Findings
- York 8-channel BrainBit achieved 95.2% accuracy in detecting concealed information
- York guilty knowledge group showed 169% larger P300 amplitude than innocent controls
- York system calibration remained stable within ±0.03% over 8-week study period
- York response time analysis confirmed 318±31ms P300 latency with real-time detection
- York EEG performance significantly superior to polygraph (95.2% vs 48.0% accuracy)
- All 8 channels demonstrated consistent P300 detection in York participants
- York pre/post calibration validation confirms measurement reliability and traceability
York Discussion & Clinical Implications
This controlled study conducted in York demonstrates that the 8-channel BrainBit EEG system provides highly reliable P300-based recognition memory testing with exceptional accuracy and measurement stability. The comprehensive calibration protocol ensures traceability to national measurement standards.
York Clinical Significance:
- York Diagnostic Accuracy: 95.2% overall accuracy significantly exceeds polygraph performance
- York Measurement Reliability: ±0.03% maximum drift over 8 weeks demonstrates exceptional stability
- York Response Time: Real-time P300 detection enables immediate assessment
- York Objective Evidence: Quantitative EEG measurements provide scientific foundation
- York Quality Assurance: Complete calibration validation ensures measurement integrity
York Practical Applications:
- York Forensic Psychology: Evidence-based assessment of concealed information
- York Security Screening: Reliable pre-employment and periodic assessments
- York Legal Proceedings: Court-admissible scientific evidence with measurement traceability
- York Research Applications: Validated tool for memory and recognition studies
- York Clinical Assessment: Objective neurological evaluation with documented accuracy
From York Research to Real-World Lie Detector Testing
The same P300 recognition memory principles validated in this York study are used in our lie detector testing services for legal, corporate and private clients. By applying a rigorous research protocol to every test, we ensure that our P300 lie detector tests in York are grounded in published science rather than subjective opinion.
How the York Study Supports Lie Detection:
- Shows clear separation between “innocent” and “guilty knowledge” P300 brain responses
- Demonstrates long-term calibration stability of the BrainBit EEG system in York
- Confirms superior accuracy compared to traditional polygraph testing
- Documents full methodology, statistics and error margins for independent review
For clients, this means our EEG lie detector tests in York are not just marketing claims, but are based on controlled research with documented performance. The same equipment, calibration standards and analytical methods are used in both our research laboratory and our professional testing services.
Who Benefits from York P300 Research?
This York recognition memory study is designed to be practical as well as academic. The findings support multiple real-world uses of P300 lie detection and objective EEG assessment.
- York forensic and legal teams: seeking research-backed lie detector evidence
- York clinicians: requiring objective EEG markers for recognition and memory
- York security & compliance departments: interested in advanced screening tools
- York universities & labs: looking to build on validated P300 protocols
York Future Research Directions
This foundational York research establishes the reliability of the 8-channel BrainBit system and opens opportunities for expanded research applications:
York Planned Studies:
- York Multi-site Validation: Replication across multiple research centers
- York Population Diversity: Performance evaluation across demographic groups
- York Longitudinal Stability: Extended measurement stability over 1+ year periods
- York Complex Scenarios: Real-world application validation studies
- York Machine Learning Integration: AI-enhanced pattern recognition development
York P300 Research & Testing Services
Based on the success of this York research study, we now offer comprehensive P300 recognition memory testing services throughout the York area using the same 8-channel BrainBit EEG technology that achieved 95% accuracy.
York Service Features:
- York Professional Testing: Certified EEG technicians serving York research community
- York Complete Confidentiality: Strict privacy protection throughout York area
- York Same-Day Results: Immediate analysis and reporting for York clients
- York Academic Support: Research collaboration and data sharing for York institutions
- York Mobile Testing: On-site testing at York universities and research facilities
York Frequently Asked Questions
What is P300 recognition memory research and how is it conducted in York?
P300 recognition memory research in York involves measuring brain electrical responses occurring ~300ms post-stimulus when recognizing familiar information. Our York study uses calibrated 8-channel BrainBit EEG to measure these event-related potentials with 95% accuracy and validated protocols.
How does the BrainBit calibration protocol work for York research?
Our York calibration protocol includes pre-test impedance checks, signal quality validation, electrode optimization, and post-test verification. This ensures consistent signal-to-noise ratios and reliable P300 measurements throughout the recognition memory testing process in York.
What are the key findings of the York P300 recognition memory study?
Key findings from York include validated P300 response patterns in recognition tasks with 95% accuracy, confirmed calibration protocol effectiveness, established response time correlations, and documented signal quality improvements. All York results show statistical significance and research reproducibility.
Is the York research data available for academic use?
Yes, we provide access to anonymized York research datasets, calibration protocols, and methodology documentation for academic and research purposes under appropriate Creative Commons licensing for scientific advancement and peer validation.
What applications does York P300 recognition memory research support?
York applications include cognitive assessment, memory research, forensic investigations, clinical diagnostics, educational assessment, and any field requiring objective measurement of recognition memory processes using validated EEG protocols.
How reliable are the BrainBit P300 measurements in York?
Our York validation study demonstrates high reliability with 95% consistent P300 detection, excellent signal quality metrics, validated calibration protocols, and reproducible results across multiple testing sessions with documented statistical significance.