Track topics on Twitter Track topics that are important to you
Human adults can typically visually discriminate the faces of unfamiliar individuals accurately, rapidly, and automatically, i.e. even without the explicit intention to do so. Recent studies have used fast periodic visual stimulation (FPVS) coupled with electroencephalography (EEG) to measure this process with objectivity and high sensitivity during simple non-face related tasks (Liu-Shuang et al., 2014). Here we consider to what extent fast individual face discrimination measured in the human brain with this approach is modulated by a direct face-related task. We recorded 128-channel EEG while participants viewed 70s sequences of a random female face identity (A) repeating at 6 Hz. Female faces of different identities (B, C…), interleaved regularly every 7th image (AAAAAABAAAAAAC…) led to significant periodic responses at 0.857 Hz (i.e., 6 Hz/7) and its harmonics, thereby indexing individual face discrimination. Participants performed two tasks: (1) an orthogonal Fixation task, monitoring random colour changes of the central fixation cross, and (2) a Face task, detecting male faces randomly replacing a female face. While the implicit Fixation task elicited robust individual face discrimination responses peaking over the (right) occipito-temporal region, the Face task led to significantly greater overall response amplitude (∼100% increase). However, this attentional boost strongly reduced response specificity by disproportionately recruiting prefrontal and central parietal regions, thereby blurring the occipito-temporal topography typical of specialized high-level face processing. The individual face discrimination response over face-selective occipito-temporal cortex was modulated by the face-sex task starting from 180 ms onset, followed by activations over prefrontal and central parietal region from 200 ms to 450 ms, respectively. Overall, these findings show that even a robust automatic individual face discrimination response can be further enhanced when explicitly searching for face-related information, albeit with a decrease in response specificity.
This article was published in the following journal.
This study aimed to elucidate whether distinct early processes underlie the perception of our own face. Alternatively, self-face perception might rely on the same processes that realize the perception...
Self-face representation is fundamentally important for self-identity and self-consciousness. Given its role in preserving identity over time, self-face processing is considered as a robust and stable...
Gaze allocation to human faces has recently been shown to be greatly dependent on the social context. However, what has not been considered explicitly here, is how gaze allocation may be supportive of...
Face recognition has been the focus of multiple studies, but little is still known on how we represent the structure of one's own face. Most of the studies have focused on the topic of visual and hapt...
Holistic face processing is a critical component of face recognition. There are two classical measures of holistic face processing: the whole-part effect (WPE) and composite-face effect (CFE). However...
The purpose of this study is to evaluate Allograft Adipose Matrix (AAM) in the face of people with age-related volume deficit - fat loss. AAM is a tissue used to correct fat loss. Particip...
Depression is a prevalent and disabling disorder with great cost to the individual and the society. Lately, the use of internet interventions as guided self-help has demonstrated remarkabl...
Psychological therapies are effective in reducing irritable bowel syndrome (IBS) symptom severity and increasing quality of life and are recommended for the management of IBS by guidelines...
Background: Insomnia is a highly prevalent and disabling disorder where Cognitive Behavior Therapy for Insomnia (CBT-I) is established as the best available treatment. Still, only a neglig...
A brief treatment program (MI/CBT) via face-to-face or via internet is tested in association with an outpatient addictions clinic.
Counseling conducted via electronic or other non-face-to-face interactions.
Education via communication media (correspondence, radio, television, computer networks) with little or no in-person face-to-face contact between students and teachers. (ERIC Thesaurus, 1997)
The length of the face determined by the distance of separation of jaws. Occlusal vertical dimension (OVD or VDO) or contact vertical dimension is the lower face height with the teeth in centric occlusion. Rest vertical dimension (VDR) is the lower face height measured from a chin point to a point just below the nose, with the mandible in rest position. (From Jablonski, Dictionary of Dentistry, 1992, p250)
The posture of an individual lying face down.
The posture of an individual lying face up.
Multiple Sclerosis MS
Multiple sclerosis (MS) is the most common disabling neurological condition affecting 100,000 young adults in the UK. The condition results from autoimmune damage to myelin, causing interference in nerve signaling. Symptoms experienced depend on the pa...