Talairach coordinates (in mm) corresponding to intracranial generators explaining the surface voltage recorded during the 450–550 ms time window during processing of various face types in the recognition task.

<p>Magn. = Magnitude in nAm; H = hemisphere, BA = Brodmann areas.</p

Timing of experimental procedure used in the two conditions: encoding (top) and recognition (bottom) task.

<p>Timing of experimental procedure used in the two conditions: encoding (top) and recognition (bottom) task.</p

Arc sin transformed percentage of errors committed in responding to affective or neutral true or false questions.

<p>The data show how challenging was to tell the truth about an emotional question related to sex, disgusting matter or shameful behavior, while it was much easier to deny a false statement.</p

swLORETA inverse solution performed on ERP responses recorded in the two conditions and on the difference waves (“lie” minus “tell the truth” condition) in the time window of 300–400 corresponding to the N400 component.

<p>Red arrows indicate electromagnetic dipoles. Coronal, axial and sagittal views are represented (from the left). L = left hemisphere, R = right hemisphere, A = anterior, P = posterior.</p

Tailarach coordinates (in mm) corresponding to the intracranial generators explaining the surface voltage recorded during response time in the lie vs. tell the truth condition in the 300–400 ms time window, according to swLORETA (ASA) [23], grid spacing = 5 mm, estimated SNR = 3.

<p>Power RMS: Lie = 59.4; Tell the truth = 53.1 µV.</p

Examples of positive and negative descriptions paired to female and male faces of various ages.

<p>Examples of positive and negative descriptions paired to female and male faces of various ages.</p

Response times recorded in response to inherently true or false statements, as a function of experimental condition (lie, or tell the truth).

<p>The data show how it was much difficult to deny a truthful than false information.</p

Grand average ERP waveforms recorded at various left and right anterior frontal, dorsolateral frontal, parietal and occipito/temporal sites.

<p>A gradient of familiarity is visible at anterior sites, indicating an enhanced processing of new vs. old, and of positive vs. negative faces, possibly negatively correlated to the strength of face memory traces. Recognition of familiar faces (OLD) resulted in the typical parietal old/new effect, in the form of an enhanced late positivity.</p

Stimulus randomization and matching of age, sex, facial expression, and valence of prejudice across categories.

<p>Stimulus randomization and matching of age, sex, facial expression, and valence of prejudice across categories.</p

Sagittal views of active sources during processing of negatively-biased, positively-biased and new faces according to swLORETA analysis during the 450–550 ms time window.

<p>The different colors represent differences in the magnitude of the electromagnetic signal (in nAm). The electromagnetic dipoles are shown as arrows and indicate the position, orientation and magnitude of dipole modeling solution applied to the ERP waveform in the specific time window. Numbers refer to the displayed brain slice in sagittal view: A = anterior, P = posterior. The images highlight the strong activation of the left medial temporal and parahippocampal gyri during memory recall of faces associated with a negative prejudice.</p