scholarly journals Attentional control: the role of task-expectations in determining attentional selection

2015 ◽  
Author(s):  
James Retell
2006 ◽  
Vol 18 (3) ◽  
pp. 456-471 ◽  
Author(s):  
Sabine Windmann ◽  
Michaela Wehrmann ◽  
Pasquale Calabrese ◽  
Onur Güntürkün

The primary source of top-down attentional control in object perception is the prefrontal cortex. This region is involved in the maintenance of goal-related information as well as in attentional selection and set shifting. Recent approaches have emphasized the role of top-down processes during elementary visual processes as exemplified in bistable vision where perception oscillates automatically between two mutually exclusive states. The prefrontal cortex might influence this process either by maintaining the dominant pattern while protecting it against the competing representation, or by facilitating perceptual switches between the two competing representations. To address this issue, we investigated reported perceptual reversals in patients with circumscribed lesions of the prefrontal cortex and healthy control participants in three experimental conditions: hold (maintaining the dominant view), speed (inducing as many perceptual switches as possible), and neutral (no intervention). Results indicated that although the patients showed normal switching rates in the neutral condition and were able to control perceptual switches in the hold condition as much as control subjects were, they were less able to facilitate reversals specifically in the speed condition. These results suggest that the prefrontal cortex is necessary to bias the selection of visual representations in accord with current goals, but is less essential for maintaining selected information active that is continuously available in the environment. As for attentional selection, the present results suggest that the prefrontal cortex initiates perceptual reversals by withdrawing top-down support from the dominant representation without (or prior to) boosting the suppressed view.


2008 ◽  
Author(s):  
Michael R. Dougherty ◽  
Amber Sprenger ◽  
Sharona Atkins ◽  
Ana M. Franco-Watkins ◽  
Rick Thomas

2014 ◽  
Vol 22 (10) ◽  
pp. 1573 ◽  
Author(s):  
Lingxia FAN ◽  
Senqing Qi ◽  
Renlu GUO ◽  
Bo HUAGN ◽  
Dong YANG

2021 ◽  
Vol 146 ◽  
pp. 103961
Author(s):  
José M. Salguero ◽  
Juan Ramos-Cejudo ◽  
Esperanza García-Sancho ◽  
Ilyana Arbulu ◽  
José L. Zaccagnini ◽  
...  

2021 ◽  
Author(s):  
Einat Rashal ◽  
Mehdi Senoussi ◽  
Elisa Santandrea ◽  
Suliann Ben Hamed ◽  
Emiliano Macaluso ◽  
...  

This work reports an investigation of the effect of combined top-down and bottom-up attentional control sources, using known attention-related EEG components that are thought to reflect target selection (N2pc) and distractor suppression (PD), in easy and difficult visual search tasks.


2019 ◽  
Vol 32 (7) ◽  
pp. 635-664 ◽  
Author(s):  
Charles Spence

Abstract Theorizing around the topic of attention and its role in human information processing largely emerged out of research on the so-called spatial senses: vision, audition, and to a lesser extent, touch. Thus far, the chemical senses have received far less research interest (or should that be attention) from those experimental psychologists and cognitive neuroscientists interested in the topic. Nevertheless, this review highlights the key role that attentional selection also plays in chemosensory information processing and awareness. Indeed, many of the same theoretical approaches/experimental paradigms that were originally developed in the context of the spatial senses, can be (and in some cases already have been) extended to provide a useful framework for thinking about the perception of taste/flavour. Furthermore, a number of those creative individuals interested in modifying the perception of taste/flavour by manipulating product-extrinsic cues (such as, for example, music in the case of sonic seasoning) are increasingly looking to attentional accounts in order to help explain the empirical phenomena that they are starting to uncover. However, separate from its role in explaining sonic seasoning, gaining a better understanding of the role of attentional distraction in modulating our eating/drinking behaviours really ought to be a topic of growing societal concern. This is because distracted diners (e.g., those who eat while watching TV, fiddling with a mobile device or smartphone, or even while driving) consume significantly more than those who mindfully pay attention to the sensations associated with eating and drinking.


Pain ◽  
2011 ◽  
Vol 152 (2) ◽  
pp. 453-459 ◽  
Author(s):  
Valéry Legrain ◽  
Geert Crombez ◽  
Katrien Verhoeven ◽  
André Mouraux

Sign in / Sign up

Export Citation Format

Share Document