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