Introspection,Anton's Syndrome,and Human Echolocation

Philosophers have recently argued that since there are people who are blind, but don't know it, and people who echolocate, but don't know it, conscious introspection is highly unreliable. I contend that a second look at Anton's syndrome, human echolocation, and ‘facial vision’ suggests otherwise. These examples do not support skepticism about the reliability of introspection.     

Lateral asymmetry of the scalp distribution of somatosensory evoked potential amplitude

Somatosensory potentials evoked by brief low-intensity electrical pulses delivered separately to the left and right index fingers were recorded from the scalp over the posterior half of the contralateral hemisphere in normal human subjects. In two experiments it was found that the scalp areas enclosed by 75 and 90% of maximum-amplitude isopotential contour lines of the early cortically generated complexes were more restricted over the left hemisphere. This asymmetrical evoked potential distribution supports the proposal by Semmes from her observations of brain-damaged patients that elementary somatosensory representation is focal in the left hemisphere and diffuse in the right.     

Postactional goal pursuit: Consequences of task completion for thought content,affect, and behavioral intentions

Postactional goal pursuit remains an underexplored area of the mindset theory of action phases. According to the theory, individuals enter a postactional phase following the completion of an intention. This phase focuses on evaluating goal outcomes, answering questions such as: Was the goal completed successfully? Was it worth the effort? Contrasting postactional phase with predecisional and actional goal pursuit, the present research examines differences in cognitive orientation, affective responses to feedback, and functional benefits for adapting subsequent goal pursuit. Five experiments show that postactional goal pursuit engenders outcome-focused deliberation, more intense affect in reaction to the current state of goal pursuit, and increased readiness to adapt subsequent goal pursuit to experienced outcomes. Moving beyond conceptual arguments, the present work provides initial evidence that postactional goal pursuit provokes a mindset-like shift suitable for a phase-specific task of outcome evaluation.     

Psychological and neurological predictors of abusive supervision

Although the negative effects of abusive supervision are well documented, less is known about the individual differences that drive supervisors to be abusive. We use a self‐control perspective to understand the unique roles of both psychological and neurological characteristics of supervisors in the prediction of abusive behavior. Specifically, we find a positive relationship between narcissism and abusive supervision, whereas political skill and intrinsic neurological connectivity in executive control regions of the brain negatively relate to abusive supervision. Our results further show that the relationship between narcissism and abusive supervision diminishes for those who are strong in terms of political skill. In addition, neurological executive control moderates the relationship between political skill and abusive behavior. When connectivity in executive control regions of the brain is lower, political skill becomes a more important factor in reducing the display of abusive behavior. Overall, we demonstrate how combinations of characteristics (both psychological and neurological) can provide a more in‐depth understanding of the emergence of abusive supervision.     

Cross-species referential signalling events in domestic dogs (<Emphasis Type="Italic">Canis familiaris</Emphasis>)

Referential gestures are used by a signaller to draw a recipient’s attention to a specific object, individual or event in the environment. These gestures have received much research attention in relation to human and non-human primates with great apes being shown to possess impressive gestural repertoires. Domestic dogs (Canis familiaris) meanwhile provide an ideal non-primate candidate for investigating referential signalling due to their unique relationship with humans that centres on non-verbal communication with frequent interaction. Here we observed 37 pet dogs in their own homes. Owners recorded 242 videos containing 47 potential referential gesture events. We analysed those recordings to reveal evidence of 19 referential gestures performed by domestic dogs during everyday communicative bouts with humans, showing that the gestures conform to the five features of referential signalling. Our study exposes impressive gesturing abilities in a non-primate mammal; especially when viewed in the context of the cross-species rather than intraspecific communication.     

Meditation buffers medical student compassion from the deleterious effects of depression

Increasing data suggest that for medical school students the stress of academic and psychological demands can impair social emotions that are a core aspect of compassion and ultimately physician competence. Few interventions have proven successful for enhancing physician compassion in ways that persist in the face of suffering and that enable sustained caretaker well-being. To address this issue, the current study was designed to (1) investigate the feasibility of cognitively-based compassion training (CBCT) for second-year medical students, and (2) test whether CBCT decreases depression, enhances compassion, and improves daily functioning in medical students. Compared to the wait-list group, students randomized to CBCT reported increased compassion, and decreased loneliness and depression. Changes in compassion were most robust in individuals reporting high levels of depression at baseline, suggesting that CBCT may benefit those most in need by breaking the link between personal suffering and a concomitant drop in compassion.     

Negative emotional processing induced by spoken scenarios modulates corticospinal excitability

Emotion is assumed to facilitate the preparation of behavioral responses to environmental stimuli. In the present study, we examined whether emotional processing induced by spoken scenarios of positive and negative content, related to the self or to other people, modulates corticospinal excitability. Motor evoked potentials (MEPs) elicited by transcranial magnetic stimulation (TMS) in 20 volunteers indicated that processing of negative emotional content increased MEP amplitude, regardless of the perspective taken in the scenario. By contrast, positive emotional processing did not reliably alter MEP amplitude. These results provide the first TMS evidence that the auditory processing of emotionally negative information triggers action preparation.