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