Detection of Deception: Magnetic Resonance Imaging (MRI)
In: Encyclopedia of Psychology and Law
Detection of Deception: Magnetic Resonance Imaging (MRI)
DOI: http://dx.doi.org/10.4135/9781412959537.n76
Subject: Psychology of Law
- Entry
- Reader's Guide
- Entries A-Z
- Subject Index
-
Traditional means of lie detection, such as the polygraph, rely on measurements of peripheral nervous system (PNS) activity. Recent advances in noninvasive brain imaging techniques, such as functional magnetic resonance imaging (fMRI), have aroused public and academic interest in developing a viable alternative. This entry briefly explains the technique of MRI and its application in the detection of deception.
How MRI WorksAn MRI scanner is a powerful superconducting electromagnet with a central bore large enough to accommodate a human body. This magnet generates a magnetic field perpendicular to the plane of the central bore. It is equipped with electromagnetic gradient coils that produce weaker, rapidly changing magnetic fields. These magnetic “pulses” cause the hydrogen nuclei in the body to resonate and emit radiofrequency signals used to ...
-
-
- A
- B
- C
- D
- E
- F
- G
- H
- I
- J
- L
- M
- N
- O
- P
- R
- S
- T
- U
- V
- W
-
166709- Loading...
Similar content on SAGE Knowledge
Loading content...Keywords
Also from SAGE Publishing
- CQ Library American political resources opens in new tab
- Data Planet A universe of data opens in new tab
- Lean Library Increase the visibility of your library opens in new tab
- SAGE Journals World-class research journals opens in new tab
- SAGE Research Methods The ultimate methods library opens in new tab
- SAGE Stats Data on demand opens in new tab