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Descripción: Screening Batelle
Descripción: Screening para ver trastornos de conducta en niños y adolescentes
Screening
Screening
Deception Detection Techniques for Rapid Screening
Dr. Jay F. Nunamaker, Jr. Director,, National Center for Border Security and Immigration Director Regents and Soldw Regents Soldwedel edel Prof Professor essor of MIS, Computer Science, and Communication University of Arizona
Why Study Credibility Assessment?
Humans are poor lie-detectors – ~54% accuracy rate for general population – Accuracy deeply affected by base rates – Poor performance affects novices and professionals Confidence in judgment is not correlated with accuracy attentiveness, verification efforts, ef forts, and – Affects attentiveness, misallocation misallocatio n of resources
Why Study Credibility Assessment?
Humans are poor lie-detectors – ~54% accuracy rate for general population – Accuracy deeply affected by base rates – Poor performance affects novices and professionals Confidence in judgment is not correlated with accuracy attentiveness, verification efforts, ef forts, and – Affects attentiveness, misallocation misallocatio n of resources
Improving Human Detection
Detection accuracy rates may improve with: – Training
Mixed results, but generally significant positive effect
– High stakes scenarios
Detection in criminal interviews inter views approaches 80% accuracy However,, the linkage between motivation and deception However performance is currently being debated
– Familiarity with individual’s usual behavior patterns (baseline)
Problems for Humans to Overcome
Excessive focus on nondiscriminant or a small subset of cues – Gaze aversion – Nervous gesturing – Preening Vigilant observation – Attention required for multiple channels
Border Crossing Environment
Border Scenario Test Your Skills!
Results
Fluid motion
Resonant voice
Spontaneous positive affective displays
Border Scenario Test Your Skills!
Results
Rigid during non-speech, abrupt during speech Elevated voice frequency Submissive responses – Low gain – Signs of deference Negative affective displays – Perhaps in response to agent Various contextual cues
Research Purpose
Unobtrusive credibility assessment and intent detection – No sensors attached to the body – Real-time, remote analysis – Scalable and robust for high traffic – Useful across contexts Investigating technologies to augment/replace the polygraph
Research Approach l a n r e t n I
Intent Exhibited by
Individual
l a n r e t x E
Manifestations of Intent Behavior
Remotely Observable Cues s e l i f o r P d e v r e s b O
– Temporal cue pattern identification – Embodied avatar effectiveness optimization – Repeated assessment analysis and baseline profiling – Effective threat index and deception index development
