NPR on brain scan lie detection

blue_brain_scan.jpgAs an update to our previous post on new neuroscience-based technology for lie detection, thanks very much to Swivel Chair Psychologist for pointing out that National Public Radio’s Talk of the Nation science programme just had a programme on fMRI lie detection with Penn psychiatrist Daniel Langleben and bioethicist Paul Wolpe.

Link to NPR Talk of the Nation on ‘The Future of Lie Detecting’.

One thought on “NPR on brain scan lie detection”

  1. PET fMRI imaging technology will do little to determine whether or not an individual is misrepresenting “facts” or “circumstances” surrounding events others are curious about or have differing opinions with regard to. However, what this type of study will determine is more of the detailed neurophysiological responses associated with specific regions of the brain which light up or not under stress.
    In normal intact sensorium without redirection of associative memory, statistically significant findings will indicate a probability of effective reporting based upon a previous baseline, just as is established with regard to galvanic responses, respirations, pupilary reactions, blood pressure, and pulse, in contemporary “Lie Detection” monitoring.
    Since everything we do is open to interpretation, just as everything we observe is, and those interpretations are generally subjective within parameters of acceptable cultural, or situational ethics, core belief and/or value systems, etc. We must then consider that all we believe is programmed by a variety of experiences from our earliest point of cognition prenataly.
    Like computer programming, the brain is a bioenergetic collection of electro-chemically interacting structures which start out with certain known and/or instinctive/inherited information, then evolve layering BIOBOOLEAN Zeros and Ones atop each subsequent layer until patterns, subroutines, routines, and programmes are created. This results in conditioned behaviors, allows for behavior modification, allows for rapid integration of experience and healthy or unhealthy adaptation to same, and eventually results in PERSONALITY, individual identity, and socially appropriate or inappropriate beliefs.
    Many people who seem to be misrepresenting facts or circumstances are usually not doing so at all. They are merely stating what they personally believe and what they “THINK” happened or what they “THINK” occured.
    Others may indicate a knowledge through empirical observation (witness testimony) or a perception of wrongs done from their subjective position, but often they, when injured and/or victimized do not recall or choose to represent the facts accurately themselves either.
    WHAT IS TRUTH? Whatever we accept as fact, although history has shown most facts are not absolute truths. In the case of belief and the physiological responses associated with STRESS or location of memory processes, the layering of subsequent attempts at recall or addition of post event hindsight, tampering with memories and recall, or changes in attitude associated with such events, people’s stories, and subsequently their beliefs related to them change.
    When our perspective fails to change with regard to questionable events and/or behaviors, that would be something to be concerned about.
    Certain PHYSICAL evidence, when handled properly and not tampered with can be indicative of PHYSICAL ASSOCIATIONS debatable in a court of law. But, belief, especially belief after many attempts to recall, review, analyse, reinterpret, or reject is completely corrupted in most cases and is useless.
    The use of such technology to determine normal pathways, vs. abnormal pathways cut through our neural nets, and the associative changes in location, associative tagging for recall, and VERY IMPORTANTLY changes in just what is reported is what will be significant.

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