Fig. 4: Possible mechanisms underlying search priority and ping evoked activity.
From: Pinging the brain to reveal the hidden attentional priority map using encephalography
Cells tuned to HP locations are proposed to adopt a more liberal activity threshold, thereby leading to faster correct RT’s as well as distractor capture when presented in that location. Importantly, this shifted bias also leads to more incidental activity when pings are presented. This differential in incidental activity is proposed as driving ping decoding. a Integrated activity from top-down, bottom-up and selection history effects driving attentional selection in an example search task. Attention is directed to the region with the highest activity, in this case, the far-left location (note: the brain schematic is based on the figure used in Theeuwes et al., 2022). b Ping-evoked incidental activity integrating bottom-up and selection history effects. Top-down effects are absent as no task goals were present in relation to pings.
