During face perception, we integrate facial expression and eye gaze to take advantage of their shared signals. For example, fear with averted gaze provides a congruent avoidance cue, signaling both threat presence and its location, whereas fear with direct gaze sends an incongruent cue, leaving threat location ambiguous. It has been proposed that the processing of different combinations of threat cues is mediated by dual processing routes: reflexive processing via magnocellular (M) pathway and reflective processing via parvocellular (P) pathway. Because growing evidence has identified a variety of sex differences in emotional perception, here we also investigated how M and P processing of fear and eye gaze might be modulated by observer's sex, focusing on the amygdala, a structure important to threat perception and affective appraisal. We adjusted luminance and color of face stimuli to selectively engage M or P processing and asked observers to identify emotion of the face. Female observers showed more accurate behavioral responses to faces with averted gaze and greater left amygdala reactivity both to fearful and neutral faces. Conversely, males showed greater right amygdala activation only for M-biased averted-gaze fear faces. In addition to functional reactivity differences, females had proportionately greater bilateral amygdala volumes, which positively correlated with behavioral accuracy for M-biased fear. Conversely, in males only the right amygdala volume was positively correlated with accuracy for M-biased fear faces. Our findings suggest that M and P processing of facial threat cues is modulated by functional and structural differences in the amygdalae associated with observer's sex.
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http://dx.doi.org/10.1002/hbm.24035 | DOI Listing |
PLoS One
January 2025
Department of General Practice, Tours Regional University Hospital, Tours, France.
Early addiction disorders screening is recommended in primary care. The goal of health system reform is to include allied health professionals in this screening. The appropriation of their new role has not yet been explored.
View Article and Find Full Text PDFPLoS One
January 2025
Social & Scientific Systems, Inc., a DLH Holdings Company / United States Agency for International Development Strategic Information Technical Support Activity, Kampala, Uganda.
Tuberculosis (TB) stigma remains a significant barrier to TB control efforts globally, especially in countries with a high TB burden. Studies about TB stigma done in Uganda so far have been limited in scope and focused on data collected health facilities. In this study we report TB related stigma at community level for the period 2021/2022.
View Article and Find Full Text PDFInt J Eat Disord
January 2025
Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, Massachusetts, USA.
Background: Patient and caregiver perspectives are critical in the evaluation of avoidant/restrictive food intake disorder (ARFID); however, little is understood about how caregiver and youth perceptions may differ. This study compared caregiver and youth reports among pediatric patients from an outpatient ARFID program.
Methods: Patients (217 individuals with ARFID, aged 8-17) and their caregivers completed the Nine-Item ARFID Screen (NIAS), a screening tool with parallel youth and caregiver report forms.
Background: Intensive care unit (ICU) admissions can be traumatic for critically ill, ventilated acute respiratory distress syndrome (ARDS) patients due to fear of death, an inability to verbally communicate, reliance on health care professionals, and invasive medical interventions. Adult ARDS patients hospitalized during the COVID-19 pandemic were strictly isolated and had limited to no visitation from loved ones, impacting their access to support systems.
Objective: To explore the memories and sensory triggers for them (if applicable) of adult ARDS survivors hospitalized during the COVID-19 pandemic.
Psychogeriatrics
March 2025
Faculty of Health Sciences, Department of Psychiatric Nursing, Gaziantep University, Gaziantep, Turkey.
Natural disasters are large-scale catastrophic events that seriously disrupt the functioning of a community or society. The frequency and severity of disasters are increasing and involve widespread human, material, economic, or environmental impacts that exceed the ability of the society affected by them to cope using its resources. In addition, disasters significantly affect the physical, emotional, and psychological health of individuals and cause numerous deaths, injuries, and economic losses.
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