The rapid orienting of attention to potential threats has been proposed to proceed outside of top-down control. However, paradigms that have been used to investigate this have struggled to separate the rapid orienting of attention (i.e. capture) from the later disengagement of focal attention that may be subject to top-down control. Consequently, it remains unclear whether and to what extent orienting to threat is contingent on top-down goals. The current study manipulated the goal-relevance of threat distractors (spiders), whilst a strict top-down attentional set was encouraged by presenting the saliently colored target and the threat distracter simultaneously for a limited time. The goal-relevance of threatening distractors was manipulated by including a spider amongst the possible target stimuli (Experiment 1: spider/cat targets) or excluding it (Experiment 2: bird/fish targets). Orienting and disengagement were disentangled by cueing attention away from or towards the threat prior to its onset. The results indicated that the threatening spider distractors elicited rapid orienting of attention when spiders were potentially goal-relevant (Experiment 1) but did so much less when they were irrelevant to the task goal (Experiment 2). Delayed disengagement from the threat distractors was even more strongly contingent on the task goal and occurred only when a spider was a possible target. These results highlight the role of top-down goals in attentional orienting to and disengagement from threat.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.3758/s13414-016-1142-3 | DOI Listing |
Brain Sci
November 2024
Key Laboratory of Brain and Cognitive Neuroscience, Liaoning Province, Dalian 116029, China.
As a form of visual input, bodily expressions can be maintained and manipulated in visual working memory (VWM) over a short period of time. While the prefrontal cortex (PFC) plays an indispensable role in top-down control, it remains largely unclear whether this region also modulates the VWM storage of bodily expressions during a delay period. Therefore, the two primary goals of this study were to examine whether the emotional bodies would elicit heightened brain activity among areas such as the PFC and extrastriate body area (EBA) and whether the emotional effects subsequently modulate the functional connectivity patterns for active maintenance during delay periods.
View Article and Find Full Text PDFPeerJ
December 2024
College of Engineering & Applied Science, University of Wisconsin, Milwaukee, Wisconsin, United States.
Artificial reefs are being increasingly deployed as a coral reef restoration strategy. Additional reef habitats made from conventional substrates (., metal, concrete, .
View Article and Find Full Text PDFIntegr Comp Biol
December 2024
Louisiana State University, Baton Rouge, LA, 70803.
Basic science research, also called "curiosity-driven research," is fundamental work done with no immediate economic goals but rather a focus on discovery for discovery's sake. However, basic science research is often needed to seed more applied, economically-oriented, research. Both basic and applied research efforts are important aspects of the "bioeconomy" defined here as the contributions to the overall economy from various biology-related fields spanning everything from museum-based natural history research to agricultural food and material production to healthcare.
View Article and Find Full Text PDFFront Neurosci
November 2024
Department of Dynamic and Clinical Psychology and Health Studies, "Sapienza" University of Rome, Rome, Italy.
Introduction: Top-down mechanisms that regulate attentional control are influenced by task demands and individuals' goals, while bottom-up processes are influenced by salient stimuli. Analogous networks are involved in both processes (e.g.
View Article and Find Full Text PDFBioessays
December 2024
Biology Department, Allen Discovery Center at Tufts University, Medford, Massachusetts, USA.
The dominant paradigm in biomedicine focuses on genetically-specified components of cells and their biochemical dynamics, emphasizing bottom-up emergence of complexity. Here, I explore the biomedical implications of a complementary emerging field: diverse intelligence. Using tools from behavioral science and multiscale neuroscience, we can study development, regenerative repair, and cancer suppression as behaviors of a collective intelligence of cells navigating the spaces of possible morphologies and transcriptional and physiological states.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!