Aytac Karabay

Cognitive neuroscientists attempt to relate cognitive processes to neural activity that is highly complex and multidimensional. Compounding this challenge is the fact that neural activity is only part of the picture. Synaptic processes that alter the functional connectivity in the brain's networks also play an important role. Such processes need not correlate strongly with neural firing, which makes them difficult to assess with non-invasive measurements.

Abstract The nature of working memory (WM) limitations has long been debated, with several models proposed to elucidate this issue. In this study, we conducted a systematic comparison of seven visual WM models to assess their ability to account for target consolidation during the attentional blink (AB).

Abstract There is an ongoing debate about whether working memory (WM) maintenance relies on persistent activity and/or short-term synaptic plasticity. This is a challenging question, because neuroimaging techniques in cognitive neuroscience measure activity only. Recently, neural perturbation techniques have been developed to tackle this issue, such as visual impulse perturbation or "pinging", which reveals (un)attended WM content during maintenance.