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