Serial dependence

…Such “serial dependence” has been observed ubiquitously in various cognitive phenomena [1]. Recent work suggests a causal role of the PPC in mediating serial dependence in rodents [2]; similar evidence in humans is correlative at best [3]. Does the PPC causally mediate serial dependence in humans? We analyzed data from participants (n=26) performing a spatially cued change detection task [4]. Participant received either 40-Hz transcranial alternating current stimulation (tACS) over the

…, a clear neural mechanism underlying serial dependence and individual differences remains elusive. This study investigates individual variations in serial dependence, providing neural evidence for such distinctions.Methods: EEG signals were recorded during a duration reproduction task. Subjects (n=48, 23 female) experienced a duration (1, 1.5,

…the other hand, recency biases such as serial dependence are also commonly observed, and are thought to reflect the content of WM. Recent results from an auditory delayed comparison task in rats, suggest that both biases may be more relate

One elementary brain function that underlies many of our cognitive behaviors is the ability to maintain parametric information briefly in mind, in the time scale of seconds, to span delays between sensory information and actions. This component of working memory is fragile and quickly degrades with delay length. Under the assumption that behavioral delay-dependencies mark core functions of the working memory system, our goal is to find a neural circuit model that represents their neural mechanisms and apply it to research on working memory deficits in neuropsychiatric disorders. We have constr

…of such bias, recently termed serial dependence, is still under investigation. Currently, there is mixed evidence indicating that such bias could be either from a sensory and perceptual origin or occurring only at decisional stages. In this talk, I will present recent findings from our group showing that biases are decreased when disrupting the memory trace in a premotor region in a simple visuomotor task. In additi

…in PFC supporting behavioral serial dependence (SD) between successive trials [1]. Moreover, SD increases when prefrontal activity-silent traces of previous memories are reactivated in the fixation period by either internal or external (e.g. transcranial magnetic stimulation, TMS) inputs

Perception can be strongly serially-dependent (i.e. biased toward previously seen stimuli). Recently, serial dependencies in perception were proposed as a mechanism for perceptual stability, increasing the apparent continuity of the complex environments we experience in everyday life. For example, stable scene perception can be actively achieved by the visual system through global serial dependencies, a special kind of serial dependence between summary statistical representations. Serial dependence occurs also between emotional expressions, but it is highly selective for the same identity. Ov