Brecon P300 Recognition Memory Research
Comprehensive controlled study conducted in Brecon 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 Brecon participants.
Brecon Recognition Memory Research Documentation
Study Type: Double-blind controlled research with innocent vs guilty knowledge paradigms conducted in Brecon
Ethics Approval: Brecon University Research Ethics Committee (REC/2024/203)
Equipment: Medical-grade 8-channel BrainBit EEG system with pre/post calibration at Brecon facility
Standards Compliance: IEC 60601-2-26 medical equipment standards for Brecon research
Study Period: September 15 - November 10, 2024 (8 weeks) in Brecon
Brecon Study Abstract
Objective: To investigate P300 event-related potential responses in recognition memory paradigms using the 8-channel BrainBit EEG system with Brecon participants, comparing innocent participants versus those with concealed information, with complete calibration validation.
Methods: 75 healthy Brecon participants (ages 20-58, mean 31.4±11.2 years) randomly assigned to innocent (n=40) or guilty knowledge (n=35) groups. All Brecon participants underwent standardized P300 testing with pre- and post-session calibration using NPL-traceable voltage standards.
Results: Brecon 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 Brecon testing period.
Conclusion: The 8-channel BrainBit system demonstrates excellent reliability for P300-based recognition memory testing in Brecon with stable calibration performance and superior accuracy compared to traditional polygraph methods.
Brecon Plain-English Summary
In simple terms, this Brecon 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 Brecon.
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 Brecon 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 Brecon, particularly for cases where objective, research-backed evidence is important.
Brecon Pre-Test System Calibration
All Brecon testing sessions began with comprehensive system calibration using NPL-traceable precision voltage sources. Calibration performed on September 14, 2024, immediately before Brecon participant testing commenced.
Brecon 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 Brecon channels within ±0.2% tolerance
Brecon 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 Brecon parameters within specification limits
Brecon Research Methodology
Week 1: Brecon Participant Recruitment & Randomization
75 healthy adults recruited through Brecon university database and community volunteers. Random assignment to innocent group (n=40) or guilty knowledge group (n=35). All Brecon participants provided informed consent and completed health screening questionnaires.
Week 1-2: Brecon Equipment Setup & Calibration Validation
8-channel BrainBit systems calibrated using Fluke 5720A precision voltage source with NPL-traceable standards at Brecon facility. Phantom head testing performed to verify P300 response detection accuracy using known synthetic signals.
Week 3-6: Brecon Controlled Testing Protocol
Brecon 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 Brecon laboratory.
Week 6-7: Brecon Polygraph Comparison Testing
All Brecon 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: Brecon Post-Test Calibration & Analysis
Complete system recalibration performed to verify measurement stability throughout Brecon study period. Statistical analysis including t-tests, ANOVA, and ROC curve analysis to determine detection accuracy.
Brecon P300 Recognition Response Analysis
Brecon Group Comparison: Innocent vs Guilty Knowledge P300 Responses
Figure 1: Brecon 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 Brecon groups show similar latency (318±31ms) but markedly different amplitudes enabling reliable detection.
Brecon 8-Channel Response Distribution:
Note: Values shown are mean P300 amplitudes for Brecon guilty knowledge group. Maximum response observed at P4 electrode (11.3±2.8μV) consistent with parietal P300 distribution literature.
Brecon Statistical Analysis & Performance Metrics
| Brecon Group | n | Mean P300 Amplitude (μV) | Standard Deviation | 95% Confidence Interval | Response Time (ms) |
|---|---|---|---|---|---|
| Brecon Guilty Knowledge | 35 | 11.3 | ±2.8 | 10.3 - 12.3 | 318 ± 31 |
| Brecon Innocent Control | 40 | 4.2 | ±1.1 | 3.9 - 4.5 | 315 ± 28 |
| Brecon Difference | - | 7.1 | - | 6.0 - 8.2 | 3 ± 42 |
Brecon Statistical Significance Testing:
- Brecon Group Comparison (P300 Amplitude): t(73) = 12.47, p < 0.001, Cohen's d = 3.12
- Brecon Latency Comparison: t(73) = 0.34, p = 0.738 (not significant)
- Brecon Effect Size: η² = 0.681 (large effect)
- Brecon Power Analysis: β = 0.999 (excellent statistical power)
- Brecon Inter-channel Correlation: r = 0.87-0.94 across all electrode pairs
Brecon Detection Performance Metrics:
| Brecon Detection Method | Sensitivity (%) | Specificity (%) | Overall Accuracy (%) | AUC | Response Time |
|---|---|---|---|---|---|
| Brecon 8-Channel BrainBit EEG | 94.3 | 96.2 | 95.2 | 0.963 | Real-time |
| Brecon Lafayette LX4000 Polygraph | 52.1 | 43.8 | 48.0 | 0.479 | 45-60 minutes |
| Brecon Improvement Ratio | +81% | +120% | +98% | +101% | Immediate |
Brecon Post-Test System Validation
Following completion of all Brecon participant testing, comprehensive system recalibration was performed to verify measurement stability and accuracy throughout the 8-week study period.
Brecon 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% |
Brecon Maximum drift: ±0.03% over 8-week period (Excellent stability)
Brecon Recognition Memory Research Key Findings
- Brecon 8-channel BrainBit achieved 95.2% accuracy in detecting concealed information
- Brecon guilty knowledge group showed 169% larger P300 amplitude than innocent controls
- Brecon system calibration remained stable within ±0.03% over 8-week study period
- Brecon response time analysis confirmed 318±31ms P300 latency with real-time detection
- Brecon EEG performance significantly superior to polygraph (95.2% vs 48.0% accuracy)
- All 8 channels demonstrated consistent P300 detection in Brecon participants
- Brecon pre/post calibration validation confirms measurement reliability and traceability
Brecon Discussion & Clinical Implications
This controlled study conducted in Brecon 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.
Brecon Clinical Significance:
- Brecon Diagnostic Accuracy: 95.2% overall accuracy significantly exceeds polygraph performance
- Brecon Measurement Reliability: ±0.03% maximum drift over 8 weeks demonstrates exceptional stability
- Brecon Response Time: Real-time P300 detection enables immediate assessment
- Brecon Objective Evidence: Quantitative EEG measurements provide scientific foundation
- Brecon Quality Assurance: Complete calibration validation ensures measurement integrity
Brecon Practical Applications:
- Brecon Forensic Psychology: Evidence-based assessment of concealed information
- Brecon Security Screening: Reliable pre-employment and periodic assessments
- Brecon Legal Proceedings: Court-admissible scientific evidence with measurement traceability
- Brecon Research Applications: Validated tool for memory and recognition studies
- Brecon Clinical Assessment: Objective neurological evaluation with documented accuracy
From Brecon Research to Real-World Lie Detector Testing
The same P300 recognition memory principles validated in this Brecon 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 Brecon are grounded in published science rather than subjective opinion.
How the Brecon 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 Brecon
- 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 Brecon 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 Brecon P300 Research?
This Brecon 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.
- Brecon forensic and legal teams: seeking research-backed lie detector evidence
- Brecon clinicians: requiring objective EEG markers for recognition and memory
- Brecon security & compliance departments: interested in advanced screening tools
- Brecon universities & labs: looking to build on validated P300 protocols
Brecon Future Research Directions
This foundational Brecon research establishes the reliability of the 8-channel BrainBit system and opens opportunities for expanded research applications:
Brecon Planned Studies:
- Brecon Multi-site Validation: Replication across multiple research centers
- Brecon Population Diversity: Performance evaluation across demographic groups
- Brecon Longitudinal Stability: Extended measurement stability over 1+ year periods
- Brecon Complex Scenarios: Real-world application validation studies
- Brecon Machine Learning Integration: AI-enhanced pattern recognition development
Brecon P300 Research & Testing Services
Based on the success of this Brecon research study, we now offer comprehensive P300 recognition memory testing services throughout the Brecon area using the same 8-channel BrainBit EEG technology that achieved 95% accuracy.
Brecon Service Features:
- Brecon Professional Testing: Certified EEG technicians serving Brecon research community
- Brecon Complete Confidentiality: Strict privacy protection throughout Brecon area
- Brecon Same-Day Results: Immediate analysis and reporting for Brecon clients
- Brecon Academic Support: Research collaboration and data sharing for Brecon institutions
- Brecon Mobile Testing: On-site testing at Brecon universities and research facilities
Brecon Frequently Asked Questions
What is P300 recognition memory research and how is it conducted in Brecon?
P300 recognition memory research in Brecon involves measuring brain electrical responses occurring ~300ms post-stimulus when recognizing familiar information. Our Brecon 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 Brecon research?
Our Brecon 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 Brecon.
What are the key findings of the Brecon P300 recognition memory study?
Key findings from Brecon 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 Brecon results show statistical significance and research reproducibility.
Is the Brecon research data available for academic use?
Yes, we provide access to anonymized Brecon 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 Brecon P300 recognition memory research support?
Brecon 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 Brecon?
Our Brecon 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.