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Impaired empathic accuracy following damage to the left hemisphere
Biol Psychol. 2022 Jun 14:108380. doi: 10.1016/j.biopsycho.2022.108380. Online ahead of print.ABSTRACTFailing to understand others accurately can be extremely costly. Unfortunately, events such as strokes can lead to a decline in emotional understanding. Such impairments have been documented in stroke patients and are widely hypothesized to be related to right-hemisphere lesions, as well as to the amygdala, and are thought to be driven in part by attentional biases, for example, less fixation on the eyes. Notably, most of the previous research relied on measurements of emotional understanding from simplified cues, such as ...
Source: Biological Psychology - June 17, 2022 Category: Psychiatry & Psychology Authors: Karine Jospe Shir Genzer Lihi Mansano Desmond Ong Jamil Zaki Nachum Soroker Anat Perry Source Type: research

Does stroke volume influence heartbeat evoked responses?
Biol Psychol. 2021 Aug 17:108165. doi: 10.1016/j.biopsycho.2021.108165. Online ahead of print.ABSTRACTWe know surprisingly little on how heartbeat-evoked responses (HERs) vary with cardiac parameters. Here, we measured both stroke volume, or volume of blood ejected at each heartbeat, with impedance cardiography, and HER amplitude with magneto-encephalography, in 21 male and female participants at rest with eyes open. We observed that HER co-fluctuates with stroke volume on a beat-to-beat basis, but only when no correction for cardiac artifact was performed. This highlights the importance of an ICA correction tailored to th...
Source: Biological Psychology - August 20, 2021 Category: Psychiatry & Psychology Authors: Anne Buot Damiano Azzalini Maximilien Chaumon Catherine Tallon-Baudry Source Type: research

Motor skill failure or flow-experience? Functional brain asymmetry and brain connectivity in elite and amateur table tennis players.
Abstract Functional hemispheric asymmetry is assumed to constitute one underlying neurophysiological mechanism of flow-experience and skilled psycho-motor performance in table tennis athletes. We hypothesized that when initiating motor execution during motor imagery, elite table tennis players show higher right- than left-hemispheric temporal activity and stronger right temporal-premotor than left temporal-premotor theta coherence compared to amateurs. We additionally investigated, whether less pronounced left temporal cortical activity is associated with more world rank points and more flow-experience. To this ai...
Source: Biological Psychology - January 20, 2015 Category: Psychiatry & Psychology Authors: Wolf S, Brölz E, Keune PM, Wesa B, Hautzinger M, Birbaumer N, Strehl U Tags: Biol Psychol Source Type: research

I got it! Transient cardiovascular response to the perception of humor.
Abstract The aim of the present study was to examine the transient cardiovascular response to the perception of humor, that is, the impact of the cognitive process of insight as well as the modulation of the response by the affective appraisal of the humor. To this end transient heart rate, stroke volume, cardiac output, and blood pressure responses were obtained in the immediate context of detecting the punch line in cartoons. Fine-grained analysis of the transient behavior of cardiovascular variables during viewing the cartoons was contrasted to non-humorous cartoon-like pictures. The detection of a punch line w...
Source: Biological Psychology - February 1, 2013 Category: Psychiatry & Psychology Authors: Lackner HK, Weiss EM, Schulter G, Hinghofer-Szalkay H, Samson AC, Papousek I Tags: Biol Psychol Source Type: research