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