DECEPTION CUE
Carly returns
to Sonny, who masks his relief over her return.
--General Hospital
(Soap Opera Digest, May 2,
2000, p. 104)
As a child, I never could understand how my mother knew
every time I told her a lie. --Marjorie F. Vargas (1986:12)
Gesture. A nonverbal sign
of verbal deceit, untruth, or lying.
Usage: A long-standing goal of nonverbal research has been to find
reliable signs of deception. The quest is fueled by popular and scientific
observations that deceit often is accompanied by unconscious signals revealing
anxiety, stress, or shame while lying. Studies indicate that certain signs used
when speaking (e.g., a. gaze-down and b. the rate of head and
hand movements) do accompany lies. (N.B.: At the least,
deception cues present probing
points with which to guide inquiry regarding possible lies, much as
galvanic skin resistance [see SWEATY
PALMS] in tandem with physiological breathing and heart
rates are used to measure autonomic stress in a polygraph test [see below,
Thermal imaging].)
Caution. Nonverbal cues may be used as
reliable indicators of anxiety and stress (see BASELINE
DEMEANOR), but the nervousness itself does not necessarily indicate
deception or lying (see below, Media).
Antigravity
signs. FBI special agent Joe Navarro has observed that, from
analysis of videotaped interrogations, deceivers are less likely than truth
tellers to use "gravity defying" gestures--such as lifting the toes (while
seated), raising upward on the toes (while standing, at the end of
a sentence, e.g., to add emphasis), and raising the
eyebrows--which demonstrate conviction and faith in one's own spoken
words (personal communication, August 8, 2001; see below, O. J. Simpson's
murder trial).
Brain fingerprinting. An experimental
technique called MERMER (Memory and Encoding Related Multifaceted
Electroencephalographic Responses) for detecting information related to events
subjects have experienced (despite efforts to conceal that knowledge) was
detailed in the Journal of Forensic Sciences ("Using Brain MERMER Testing
to Detect Knowledge Despite Efforts to Conceal," January, 2001, Vol. 46, No. 1,
pp. 1-9). Also known as "brain fingerprinting," MERMER is claimed to be 90-99%
accurate, with 0 false-positives or false negatives. Subjects need not utter a
word in the MERMER test. They are shown photographs of a crime scene, e.g., and
those familiar with the scene show different brain-wave patterns than those who
are unfamiliar with the scene.
Chimpanzee deception. In the
broadest sense of the term, "deception" is rife in the animal kingdom.
Nonpoisonous flies and snakes, e.g., may adopt the warning marks and coloration
of poisonous species to seem, deceptively, more harmful than they are in fact
(see also LOOM). The ability to deceive is highly evolved in
primates (see below, Nonhuman primates). Our close animal relative, the
chimpanzee (Pan troglodytes), e.g., is gifted in the art of deception:
1. A young male, Dandy, withheld nonverbal cues of excitement to deceive
other chimpanzees as to the location of hidden grapefruit, which Dandy
subsequently consumed all by himself (Waal 1982). 2. A 9-year old male,
Figan, withheld nonverbal food calls to conceal a bunch of bananas, which Figan
subsequently consumed all by himself (Goodall 1986). 3. An adult male,
Luit, pressed his lips together with his hand in an apparent attempt to hide the
submissive fear grin he had given his rival, Nikki (Waal 1982).
Evolution. "If we speculate about the evolution of communication,
it is evident that a very important stage in this evolution occurs when the
organism gradually ceases to respond quite 'automatically' to the mood signs of
another and becomes able to recognize the sign as a signal: that is, to recognize that the other individual's
and its own signals are only signals, which can be trusted, distrusted,
falsified, denied, amplified, corrected, and so forth" (Bateson
1955:40).
Literature. "If you had a hundred masks upon your face,
your thoughts however slight would not be hidden from me." --Dante Alighieri
(Purgatorio, Canto XV).
Media. "Another factor that makes it difficult to detect
lies is that 'the fear of being disbelieved looks the same as the fear of being
caught lying,' he [Dr. Paul Ekman] said" (Goleman, New York Times, C9,
Sept. 17, 1991).
Nonhuman primates. In primates, "tactical
deception" may include concealment, distraction, creating an image,
manipulation, and deflection (Quiatt and Reynolds
1993:158-59).
Nonverbal changes. According to Mark Knapp, Judee
Burgoon, and G. Miller, ". . . changes in nonverbal behavior during deception
consistently occur in six behavioral categories: (a) cues indicating
underlying anxiety or nervousness, (b) cues indicating
underlying reticence or withdrawal (including nonimmediacy), (c) excessive behaviors that deviate
from the liar's truthful response patterns, (d) cues showing
underlying negative affect, (e) cues showing underlying vagueness or uncertainty, and (f) incongruous responses or
mixed messages" (Burgoon et al. 1989:270).
O. J. Simpson's murder
trial. 1. Listening to testimony about the location of his knit cap,
Mr. Simpson visibly protested what he knew to be false. 2. Listening to
testimony accusing him of the murder of his wife, Mr. Simpson showed no visible
protest and remained completely motionless in his seat. 3. Why the stark
contrast in his nonverbal demeanor? (N.B.: You be the
judge.)
Palm-up. "Pilot studies had suggested that a
particular emblem, the hand shrug [a palm-up cue] which has the meaning of
helplessness or inability . . . would appear as a clue to the occurrence of
deception. . . . . In this instance, we expected that the hand-shrug emblem was
occurring as a nonverbal slip of the tongue, with little awareness on the part
of the subject, and that it was a deception cue" (Ekman and Friesen
1972:367).
Self-touch. "We think the [hand-to-face] eyecover
[of] shame expresses her main affective reaction to the two verbal themes, being
hospitalized and having aggressive impulses" (Ekman and Friesen 1968:207;
Author's Note: In the figure used to illustrate the eyecover cue, the subject is
also gazing downward and touching her forehead with her hand).
Sociopathy. People with antisocial personality disorder (so-called "sociopaths") may not show behavioral signs of deception. According to the American Psychiatric Association's DSM IV-TR (2000), such individuals are characterized by deceptiveness and repeated lying, aggressiveness, absence of anxiety and nervous mannerisms, and lack of remorse. (See above, "O. J. Simpson's murder trial.")
Thermal
imaging. A preliminary laboratory study by Mayo Clinic researchers
(published in the journal Nature, January 3, 2002) used heat imaging to
detect facial flushing around the eyes as a sign of deception.
Study results showed the thermal-imaging technique to be about as reliable as
the polygraph or "lie detector," which measures physiological arousal related to
the fight-or-flight response. More research is planned, with an eye toward
possible use in spotting terrorists at airports.
RESEARCH
REPORTS: 1. Deliberate control of body movement
and the mental energy required to fabricate a lie have been suggested to explain
the general research finding that fewer body movements occur with
deception (Vrij et al. 1966). 2. Lower rates of head
nodding "are associated with deceitful communication" (Mehrabian
1972:102). 3. Three ". . . extensive reviews of the data . . . showed
that several nonverbal cues are, in fact, consistently related to deception"
(Burgoon et al. 1989:270). "Deceivers display increased pupil dilation [see EYES],
blinking rates, and adaptors [i.e., self-touching], more segments of body
behavior, and fewer segments of facial behavior" (Burgoon et al. 1989:271).
4. Paul Ekman suggests that one should ". . . never reach a final
conclusion about whether a suspect is lying or truthful based solely on either
the polygraph or behavioral clues to deceit" (Ekman 1992:238; italics are
the author's). 5. People make "fewer hand movements during
deception compared to truth-telling" (Vrij et al. 1997:97).
STUDY
ABSTRACT: "Research on the detection of deception, via non-verbal cues,
has shown that people's ability to successfully discriminate between truth and
deception is only slightly better than chance level. One of the reasons for
these disappointing findings possibly lies in people's inappropriate beliefs
regarding lying behaviour. A 64-item questionnaire originally used in Germany,
which targets participants beliefs regarding truthful and deceptive behaviour,
was used. The present study differed from previous research in three ways: (i)
instead of a student population, police officers and lay people were sampled,
(ii) both people's beliefs regarding others deceptive behaviour and their
beliefs regarding their own deceptive behaviour were examined, and (iii) both
non-verbal cues to, and content characteristics of, deceptive statements were
examined. Results were consistent with previous studies, which found significant
differences between people's beliefs regarding deceptive behaviour and
experimental observations of actual deceptive behaviour. Further, police
officers held as many false beliefs as did lay people and finally, participants
were more accurate in their beliefs regarding their own deceptive behaviour than
they were in their beliefs regarding others behaviour" (Akehurst et al.
1996:461; John Wiley & Sons, Ltd.).
See also EYE-BLINK, FIGHT-OR-FLIGHT, SHOULDER-SHRUG.
Copyright 1998 - 2020(David B. Givens/Center for Nonverbal Studies)
Cover of David Givens's book, Crime Signals (New York: St. Martin's Press, 2008; Ch. 1, "The Look of a Lie," examines nonverbal signs of deception)