BACKGROUND Recent studies designed to identify the mechanism by which retinal horizontal cells communicate with cones have implicated two processes. According to one account, horizontal cell hyperpolarization induces an increase in pH within the synaptic cleft that activates the calcium current (Ca(2+)-current) in cones, enhancing transmitter release. An alternative account suggests that horizo...

High-frequency oscillatory potentials (HFOPs) have been recorded from ganglion cells in cat, rabbit, frog, and mudpuppy retina and in electroretinograms (ERGs) from humans and other primates. However, the origin of HFOPs is unknown. Based on patterns of tracer coupling, we hypothesized that HFOPs could be generated, in part, by negative feedback from axon-bearing amacrine cells excited via elec...

Understanding of “Coherence” In my understanding, coherence in computer-mediated conversation (CMC) is a logical, consistent, and orderly flow of conversations in electronic environments. Herring (1999) identified two major problems that could cause incoherence in CMC: lack of simultaneous feedback and disrupted turn adjacency. Herring demonstrated the problems by using examples from synchronou...

This paper reports an interview study about how consent to sexual activity is computer-mediated. The study's context of online dating chosen due the prevalence violence, or nonconsensual activity, that associated with app-use. Participants (n=19) represent a range gender identities and orientations, predominantly used app Tinder. Findings reveal two computer-mediated processes: signaling affirm...

Abstract While feedback is frequently emphasized as a crucial principle of presentation courses in higher education, previous studies revealed that teachers outperform peers terms impact on students’ development oral competence. Further, research showed the lack quality peer can be considered an essential argumentation for identified differences effect. Follow-up field experiments demonstrated ...

Video chat is a popular form of computer-mediated communication in a range of contexts from online job interviews to chatting with friends. Although seeing your own video feedback is the predominant interface design, self-awareness research suggests that seeing oneself could induce self-consciousness and affect interaction. We created a custom video chat application and asked pairs of strangers...

Introduction: Providing feedback to students is an essentialcomponent in medical education and has been shown to improvethe students’ learning. The purpose of this study is to evaluatethe effect of computer-based immediate feedback on the medicalstudents’ learning in a pharmacology course.Methods: In this prospective intervention study some feedbackmodules in pharmacology (FMP) were prepared in...

Optimal feedback control (OFC) is a theory from the motor literature that explains how humans move their body to achieve certain goal, e.g., pointing with finger. OFC based on assumption aim optimally, within constraints imposed by body, environment, and task. In this paper, we explain can be applied understanding Human-Computer Interaction (HCI) in case of pointing. We propose human computer d...