Norrkross morphx troubleshooting1/5/2024 ![]() Biol Psych 92:249–256Įimer M (2000) The face-specific N170 component reflects late stages in the structural encoding of faces. Sleep Med Rev 11:277–293Ĭote KA, McCormick CM, Geniole SN, Renn RP, MacAulay SD (2013) Sleep deprivation lowers aggression and testosterone in men. Int J Behav Dev 7:193–214Ĭolrain IM, Campbell KB (2007) The use of evoked potentials in sleep research. Behav Brain Funct 3:1–13īullock M, Russell JA (1984) Preschool children’s interpretation of facial expressions of emotion. Cognition 86:B1–B14īlau VC, Maurer U, Tottenham N, McCandliss BD (2007) The face-specific N170 component is modulated by emotional facial expression. Cog Brain Res 17:613–620īentin S, Golland Y (2002) Meaningful processing of meaningless stimuli: the influence of perceptual experience on early visual processing of stimuli. Behav Cog Neurosci Rev 1:21–62īatty M, Taylor MJ (2003) Early processing of the six basic facial emotional expressions. Sleep loss preferentially impacted the processing of Sad faces this has widespread implications for sleep-deprived groups.Īdolphs R (2002) Recognizing emotions from facial expressions: psychological and neurological mechanisms. ![]() These data illustrate that sleep deprivation led to greater neural reactivity for the threat-related negative emotions as they became more subtle however, there was a failure to engage these perceptual resources for the processing of Sad faces. For the SD group, N170 increased in amplitude with increasing perceptual difficulty for the Fearful and Angry faces, but decreased in amplitude with increasing difficulty for Sad faces. In the more difficult morphed face task, SD participants were less accurate than C participants for Sad faces as well, the group difference in reaction time was greatest for Sad faces. P1 was smaller and N170 was larger for the SD compared to C group, but for all emotions, indicating generalized impairment in low-level visual processing. In the full face task, sleep-deprived (SD) participants were significantly less accurate than controls (C) at identifying Sad faces and slower to identify all emotional expressions. It was expected that sleep deprivation would lead to greater reactivity (indexed by larger amplitude N170 event-related potentials), particularly for negative and more subtle facial expressions. They were shown the ‘full’ expression of the emotions in one task and more subtle expressions in a second task in which expressions were ‘morphed’ with neutral faces so that the intensity of emotion varied. Forty-nine participants completed two tasks in which they were asked to categorize emotional facial expressions as Happy, Sad, Angry, or Fearful. In the current study, we investigated the impact of total sleep deprivation on neural responses to emotional facial expressions as well as the accuracy and speed with which these faces were categorized. Sleep deprivation impacts subjective mood states, but very little research has examined the impact on processing emotional information.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |