AI Article Synopsis
- The study looked at how our brains recognize faces and if this recognition changes when we see the same face from different angles.
- Researchers used a special tool to see how our brain responds to familiar and unfamiliar faces in different views.
- They found that when we see the same face from the same angle, our brain's response gets weaker, but when the angle changes, the response doesn't weaken, showing our brain notices faces differently based on their viewpoint.
Article Abstract
The aim of this study was to determine the extent to which the neural representation of faces in visual cortex is viewpoint dependent or viewpoint invariant. Magnetoencephalography was used to measure evoked responses to faces during an adaptation paradigm. Using familiar and unfamiliar faces, we compared the amplitude of the M170 response to repeated images of the same face with images of different faces. We found a reduction in the M170 amplitude to repeated presentations of the same face image compared with images of different faces when shown from the same viewpoint. To establish if this adaptation to the identity of a face was invariant to changes in viewpoint, we varied the viewing angle of the face within a block. We found a reduction in response was no longer evident when images of the same face were shown from different viewpoints. This viewpoint-dependent pattern of results was the same for both familiar and unfamiliar faces. These results imply that either the face-selective M170 response reflects an early stage of face processing or that the computations underlying face recognition depend on a viewpoint-dependent neuronal representation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/cercor/bhm060 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Central amygdala NPBWR1 neurons facilitate social novelty seeking and new social interactions.
Sci Adv
January 2025
International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058575, Japan.
The formation of new social interactions is vital for social animals, but the underlying neural mechanisms remain poorly understood. We identified CeA neurons, a population in central amygdala expressing neuropeptide B/W receptor-1 (NPBWR1), that play a critical role in these interactions. CeA neurons were activated during encounters with unfamiliar, but not with familiar, mice.
View Article and Find Full Text PDFEffect of hearing experience on preschool-aged children's eye gaze to a talker during spoken language processing.
Atten Percept Psychophys
January 2025
School of Allied Health and Communicative Disorders, Northern Illinois University, DeKalb, IL, USA.
Speechreading-gathering speech information from talkers' faces-supports speech perception when speech acoustics are degraded. Benefitting from speechreading, however, requires listeners to visually fixate talkers during face-to-face interactions. The purpose of this study is to test the hypothesis that preschool-aged children allocate their eye gaze to a talker when speech acoustics are degraded.
View Article and Find Full Text PDFGaps in knowledge and management of iron deficiency in heart failure: a nationwide survey of cardiologists in China.
Heart
January 2025
Heart Failure Center, Department of Cardiology, China-Japan Friendship Hospital, Beijing, China
Background: Heart failure (HF) guidelines recommend routine testing for iron deficiency (ID) and, for those with ID, intravenous iron if the left ventricular ejection fraction is <50%. Guideline adherence to these recommendations by cardiologists in China is unknown.
Methods And Results: An independent academic web-based survey was designed and distributed via social networks to cardiologists across China.
Familiarity of an environment prevents song suppression in isolated zebra finches.
PLoS One
January 2025
Institute of Neuroinformatics, University of Zurich and ETH Zurich, Zurich, Switzerland.
Despite the wide use of zebra finches as an animal model to study vocal learning and production, little is known about impacts on their welfare caused by routine experimental manipulations such as changing their social context. Here we conduct a post-hoc analysis of singing rate, an indicator of positive welfare, to gain insights into stress caused by social isolation, a common experimental manipulation. We find that isolation in an unfamiliar environment reduces singing rate for several days, indicating the presence of an acute stressor.
View Article and Find Full Text PDFFalse Memories of Familiar Faces.
Exp Psychol
January 2025
Department of Psychology, Louisiana State University, Baton Rouge, LA, USA.
Article Synopsis
- Prior familiarity with faces, especially when they are known US celebrities, enhances recognition and source memory compared to unfamiliar European celebrities.
- In two experiments, both familiar and unfamiliar faces showed improved recognition rates with repetition during learning, but participants were more accurate with familiar faces.
- Experiment 2 revealed that while familiar faces were recognized more frequently, they were also more prone to being incorrectly identified as previously seen when paired with new backgrounds, suggesting complexities in face memory recall.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!