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