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