Most current models of visual processing propose that there are 2 main stages processing, the first consisting a parallel analysis scene and second being precise scrutiny few elements in scene. Here, we present novel evidence stage adds systematic variance to times. When searching for specific target, it has behaviorally unique signature: RTs increase logarithmically with number items display this is modulated by target-distractor similarity. This signature characteristic unlimited capacity...

The effects of emotion on memory are wide-ranging and powerful, but they not uniform. Although there is agreement that enhances for individual items, how it influences the associated contextual details (relational memory, RM) remains debated. prevalent view suggests impairs RM, also evidence RM. To reconcile these diverging results, we carried out three studies incorporating following features: (1) testing RM with increased specificity, distinguishing between

Traditionally, researchers interpret the difficulty in conjunction search as binding features. In present study, we used a behavioral-computational approach to assess if parameters from feature could predict performance color-shape task. We also investigated whether pooling-mediated processing peripheral regions was key-limiting factor by manipulating display arrangements across different experiments. The results indicated that homogeneous displays can indeed be successfully displays. This...

In the Simon effect, participants make a left or right keypress in response to nonspatial attribute (e.g., color) that is presented on right. Reaction times (RTs) increase when activated by irrelevant stimulus location and retrieved instruction are conflict. The authors measured RTs movement parameters (MPs) of pointing responses typical task. Their results show trajectories veer toward imperative stimulus. This bias decreased as increased. suggest time course trajectory deviations reflects...

We used a time perception task to study the effects of subjective experience control on emotion and cognitive processing. This is uniquely sensitive emotionality stimuli: high-arousing negative stimuli are perceived as lasting longer than positive events, while opposite pattern observed for low-arousing stimuli. evaluated temporal distortions emotionally charged events in non-anxious (Experiments 1 5) spider-fearful individuals 2-4). Participants were shown images varying durations between...

It has been shown that when humans require a brief moment of concentration or mental effort, they tend to avert their gaze away from the attended location (or even blink). Similarly, participants miss unexpected events are highly focused on task. We present an engagement theory distractibility is meant capture relationship between participants' in task and reduction sensitivity new sensory broad range situations. In series experiments, we asked perform different cognitive tasks varying...

Approach-like actions are initiated faster with stimuli of positive valence. Conversely, avoidance-like threatening negative We went beyond reaction time measures and investigated whether also affect the way in which an action is carried out. Participants moved their hand either away from picture a spider (avoidance) or they toward (approach). compared spider-fearful participants to non-anxious participants. When reaching picture, more directly target than controls. spider, less Some...

Reaching to targets in space requires the coordination of eye and hand movements. In two experiments, we recorded kinematics examine role gaze position at target onset on eye-hand reaching performance. Experiment 1 showed that with eyes aligned same peripheral start location, time lags between onsets were small initiation times substantially correlated, suggesting simultaneous control tight coupling. With departing from different locations (gaze center range possible positions), large...

Previous work in our lab has demonstrated that efficient visual search with a fixed target reaction time by set size function is best characterized logarithmic curves. Further, the steepness of these curves determined similarity between and distractor items (Buetti et al., 2016). A theoretical account findings was proposed, namely parallel, unlimited capacity, exhaustive processing architecture underlying such data. Here, we conducted two experiments to expand real-world stimuli, both...

Abstract Objects in a scene can be distinct from one another along multitude of visual attributes, such as color and shape, the more an object is its surroundings, easier it to find it. However, exactly how this distinctiveness advantage arises vision not well understood. Here we studied whether different attributes (color assessed four experiments) combine determine object’s overall scene. Unidimensional scores were used predict performance six separate experiments where target differed...

The Simon effect has most often been investigated with key-press responses and eye fixation. In the present study, we asked how type of movement manual response affect selection in a task. We three instructions (spontaneous, saccade, fixation) while participants performed goal-directed (i.e., reaching) or symbolic finger-lift) responses. Initially, no oculomotor constraints were imposed, was for both types. Next, movements constrained. Participants had to either make saccade toward stimulus...

In a previous study (M. Carrasco, S. Ling, & Read, 2004), observers selected one of two Gabors that appeared to have higher contrast (comparative judgment). A peripheral cue preceded the by 120 ms. Results showed increased perceived adjacent Gabor. We replicated experiment and found correlations between precision judgments perceptual cueing effects. Larger effects occurred in conditions with less precise who saw difference stimuli. Further, we asked judge whether were equal or different...

Recently, Wang, Buetti and Lleras (2017) developed an equation to predict search performance in heterogeneous visual scenes (i.e., multiple types of non-target objects simultaneously present) based on parameters observed when participants perform homogeneous all are identical one another). The was a computational model where every item the display is processed with unlimited capacity independently another, goal determining whether likely be target or not. tested two experiments using...

Emotional well-being depends on the ability to successfully engage a variety of coping strategies regulate affective responses. Most studies have investigated effectiveness emotion regulation (ER) that are deployed relatively later in timing processing leads full emotional experiences (i.e. reappraisal and suppression). Strategies engaged earlier stages processing, such as those involved attentional deployment, also been investigated, but less is known about their mechanisms. Here, we...

Does attention alter appearance? Recent studies have shown that an exogenous cue tends to increase the perceived contrast of a low-contrast stimulus. In present study we systematically studied attentional effect over wide range levels (15% 60%). Besides replicating enhancement at lower with higher comparative tasks (Experiment 1), data revealed cue-induced attenuation in apparent 2) and same/different judgment task 3). This was robust individual level, it not due response bias or sensory...