Alejandro Lleras

2025

Color-color feature guidance in visual search

Wang, Y., Buetti, S., Cui, A. Y. & Lleras, A., Apr 28 2025, (E-pub ahead of print) In: Attention, Perception, and Psychophysics.

Research output: Contribution to journal › Article › peer-review

Emotional dissociations in temporal associations: opposing effects of arousal on memory for details surrounding unpleasant events

Bogdan, P. C., Dolcos, S., Federmeier, K. D., Lleras, A., Schwarb, H. & Dolcos, F., 2025, In: Cognition and Emotion. 39, 1, p. 82-96 15 p.

Research output: Contribution to journal › Article › peer-review

Evaluating the contribution of parallel processing of color and shape in a conjunction search task

Cui, A. Y., Buetti, S., Xu, Z. J. & Lleras, A., Dec 2025, In: Scientific reports. 15, 1, 7760.

Research output: Contribution to journal › Article › peer-review

Open Access

Quantifying the Relationship Between Search Efficiency and Perceptual Similarity in Color Space Across Different Efficient Search Tasks

Lleras, A., Xu, Z. J., Tan, H. J. H., Shao, Y. & Buetti, S., Jul 2025, (E-pub ahead of print) In: Journal of Experimental Psychology: Human Perception and Performance. 51, 7, p. 850-874 25 p.

Research output: Contribution to journal › Article › peer-review

2024

Investigating the suitability of online eye tracking for psychological research: Evidence from comparisons with in-person data using emotion–attention interaction tasks

Bogdan, P. C., Dolcos, S., Buetti, S., Lleras, A. & Dolcos, F., Mar 2024, In: Behavior Research Methods. 56, 3, p. 2213-2226 14 p.

Research output: Contribution to journal › Article › peer-review

Reconciling Opposing Effects of Emotion on Relational Memory: Behavioral, Eye-Tracking, and Brain Imaging Investigations

Bogdan, P. C., Dolcos, F., Katsumi, Y., O’Brien, M., Iordan, A. D., Iwinski, S., Buetti, S., Lleras, A., Bost, K. F. & Dolcos, S., 2024, In: Journal of Experimental Psychology: General. 153, 12, p. 3074-3106 33 p.

Research output: Contribution to journal › Article › peer-review

Skills and cautiousness predict performance in difficult search

Xu, Z. J., Buetti, S., Xia, Y. & Lleras, A., Aug 2024, In: Attention, Perception, and Psychophysics. 86, 6, p. 1897-1912 16 p.

Research output: Contribution to journal › Article › peer-review

Top-down instructions influence the attentional weight on color and shape dimensions during bidimensional search

Xu, Z. J., Lleras, A., Gong, Z. G. & Buetti, S., Dec 2024, In: Scientific reports. 14, 1, 31376.

Research output: Contribution to journal › Article › peer-review

Open Access

2023

Complex Background Information Slows Down Parallel Search Efficiency by Reducing the Strength of Interitem Interactions

Cui, A. Y., Lleras, A., Ng, G. J. P. & Buetti, S., 2023, In: Journal of Experimental Psychology: Human Perception and Performance. 49, 7, p. 1053-1067 15 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2021

Distractor–Distractor Interactions in Visual Search for Oriented Targets Explain the Increased Difficulty Observed in Nonlinearly Separable Conditions

Xu, Z. J., Lleras, A., Shao, Y. & Buetti, S., 2021, In: Journal of Experimental Psychology: Human Perception and Performance. 47, 9, p. 1274-1297 24 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Introduction to the Special Issue on the Impact of Race on Psychological Processes

Spielmann, J., Kroeper, K. M., Lleras, A. & Tree, J. E. F., 2021, In: Translational Issues in Psychological Science. 7, 4, p. 357-362 6 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Irrelevant features of distractors in intervening visual search tasks cause active visual working memory interference – the more difficult the search task, the more interference it causes

Lively, Z., Ng, G. J. P., Buetti, S. & Lleras, A., Aug 2021, In: Attention, Perception, and Psychophysics. 83, 6, p. 2410-2429 20 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Predicting how surface texture and shape combine in the human visual system to direct attention

Xu, Z. J., Lleras, A. & Buetti, S., Dec 2021, In: Scientific reports. 11, 1, 6170.

Research output: Contribution to journal › Article › peer-review

Open Access

Prioritization in visual attention does not work the way you think it does

Ng, G. J. P., Buetti, S., Patel, T. N. & Lleras, A., Feb 2021, In: Journal of experimental psychology. Human perception and performance. 47, 2, p. 252-268 17 p.

Research output: Contribution to journal › Article › peer-review

2020

A target contrast signal theory of parallel processing in goal-directed search

Lleras, A., Wang, Z., Ng, G. J. P., Ballew, K., Xu, J. & Buetti, S., Feb 1 2020, In: Attention, Perception, and Psychophysics. 82, 2, p. 394-425 32 p.

Research output: Contribution to journal › Article › peer-review

Open Access

The impact of focused attention on emotional evaluation: An eye-tracking investigation.

Dolcos, F., Bogdan, P. C., O'Brien, M., Iordan, A. D., Madison, A., Buetti, S., Lleras, A. & Dolcos, S., 2020, In: Emotion.

Research output: Contribution to journal › Article › peer-review

The impact of focused attention on subsequent emotional recollection: A functional MRI investigation

Dolcos, F., Katsumi, Y., Bogdan, P. C., Shen, C., Jun, S., Buetti, S., Lleras, A., Bost, K. F., Weymar, M. & Dolcos, S., Feb 17 2020, In: Neuropsychologia. 138, 107338.

Research output: Contribution to journal › Article › peer-review

2019

Distractor rejection in parallel search tasks takes time but does not benefit from context repetition^*

Ng, G. J. P., Buetti, S., Dolcos, S., Dolcos, F. & Lleras, A., Sep 14 2019, In: Visual Cognition. 27, 5-8, p. 609-625 17 p.

Research output: Contribution to journal › Article › peer-review

Predicting how color and shape combine in the human visual system to direct attention

Buetti, S., Xu, J. & Lleras, A., Dec 1 2019, In: Scientific reports. 9, 1, 20258.

Research output: Contribution to journal › Article › peer-review

Open Access

Predicting Search Performance in Heterogeneous Scenes: Quantifying the Impact of Homogeneity Effects in Efficient Search

Lleras, A., Wang, Z., Madison, A. & Buetti, S., Jan 8 2019, In: Collabra: Psychology. 5, 1, p. 2 2.

Research output: Contribution to journal › Article › peer-review

Open Access

2018

Fixed-target efficient search has logarithmic efficiency with and without eye movements

Ng, G. J. P., Lleras, A. & Buetti, S., Oct 1 2018, In: Attention, Perception, and Psychophysics. 80, 7, p. 1752-1762 11 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Parallel, exhaustive processing underlies logarithmic search functions: Visual search with cortical magnification

Wang, Z., Lleras, A. & Buetti, S., Aug 1 2018, In: Psychonomic Bulletin and Review. 25, 4, p. 1343-1350 8 p.

Research output: Contribution to journal › Article › peer-review

Open Access

The role of crowding in parallel search: Peripheral pooling is not responsible for logarithmic efficiency in parallel search

Madison, A., Lleras, A. & Buetti, S., Feb 1 2018, In: Attention, Perception, and Psychophysics. 80, 2, p. 352-373 22 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2017

Alpha, beta: The rhythm of the attentional blink

Shapiro, K. L., Hanslmayr, S., Enns, J. T. & Lleras, A., Dec 1 2017, In: Psychonomic Bulletin and Review. 24, 6, p. 1862-1869 8 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Can we "Apply" the findings of Forster and Lavie (2008)? On the generalizability of attentional capture effects under varying levels of perceptual load

Lleras, A., Chu, H. & Buetti, S., Jun 2017, In: Journal of Experimental Psychology: Applied. 23, 2, p. 158-179 22 p.

Research output: Contribution to journal › Article › peer-review

Exploring the contributions of spatial and non-spatial working memory to priming of pop-out

Ahn, J. W., Patel, T. N., Buetti, S. & Lleras, A., May 1 2017, In: Attention, Perception, and Psychophysics. 79, 4, p. 1012-1026 15 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Predicting search performance in heterogeneous visual search scenes with real-world objects

Wang, Z., Buetti, S. & Lleras, A., 2017, In: Collabra: Psychology. 3, 1, 6.

Research output: Contribution to journal › Article › peer-review

Open Access

2016

Avoidance or boredom: Negative mental health outcomes associated with use of Information and Communication Technologies depend on users' motivations

Panova, T. & Lleras, A., May 1 2016, In: Computers in Human Behavior. 58, p. 249-258 10 p.

Research output: Contribution to journal › Article › peer-review

Distractibility is a function of engagement, not task difficulty: Evidence from a new oculomotor capture paradigm

Buetti, S. & Lleras, A., Oct 1 2016, In: Journal of Experimental Psychology: General. 145, 10, p. 1382-1405 24 p.

Research output: Contribution to journal › Article › peer-review

Towards a better understanding of parallel visual processing in human vision: Evidence for exhaustive analysis of visual information

Buetti, S., Cronin, D. A., Madison, A. M., Wang, Z. & Lleras, A., Jun 1 2016, In: Journal of Experimental Psychology: General. 145, 6, p. 672-707 36 p.

Research output: Contribution to journal › Article › peer-review

2014

Age-related differences in the distractor previewing effect with schematic faces of emotions

Wan, X., Tian, L. & Lleras, A., 2014, In: Aging, Neuropsychology, and Cognition. 21, 4, p. 386-410 25 p.

Research output: Contribution to journal › Article › peer-review

Modeling the effect of selection history on pop-out visual search

Tseng, Y. C., Glaser, J. I., Caddigan, E. & Lleras, A., Mar 3 2014, In: PloS one. 9, 3, e89996.

Research output: Contribution to journal › Article › peer-review

Not all "distractor" tags are created equal: Using a search asymmetry to dissociate the inter-trial effects caused by different forms of distractors

Lleras, A. & Buetti, S., 2014, In: Frontiers in Psychology. 5, JUN, 669.

Research output: Contribution to journal › Article › peer-review

Relative contributions of task-relevant and task-irrelevant dimensions in priming of pop-out

Michal, A. L., Lleras, A. & Beck, D. M., 2014, In: Journal of vision. 14, 12, 14.

Research output: Contribution to journal › Article › peer-review

The flanker effect does not reflect the processing of “task-irrelevant” stimuli: Evidence from inattentional blindness

Buetti, S., Lleras, A. & Moore, C. M., Oct 1 2014, In: Psychonomic Bulletin and Review. 21, 5, p. 1231-1237 7 p.

Research output: Contribution to journal › Article › peer-review

The role of prediction in perception: Evidence from interrupted visual search

Mereu, S., Zacks, J. M., Kurby, C. A. & Lleras, A., Aug 2014, In: Journal of Experimental Psychology: Human Perception and Performance. 40, 4, p. 1372-1389 18 p.

Research output: Contribution to journal › Article › peer-review

Open Access

Trial history effects in the ventral attentional network

Scalf, P. E., Ahn, J. W., Beck, D. M. & Lleras, A., Dec 20 2014, In: Journal of cognitive neuroscience. 26, 12, p. 2789-2797 9 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2013

Feelings of control restore distorted time perception of emotionally charged events

Mereu, S. & Lleras, A., Mar 2013, In: Consciousness and Cognition. 22, 1, p. 306-314 9 p.

Research output: Contribution to journal › Article › peer-review

Rewarding context accelerates implicit guidance in visual search

Tseng, Y. C. & Lleras, A., 2013, In: Attention, Perception, and Psychophysics. 75, 2, p. 287-298 12 p.

Research output: Contribution to journal › Article › peer-review

2012

Making waves in the stream of consciousness: Entraining oscillations in EEG alpha and fluctuations in visual awareness with rhythmic visual stimulation

Mathewson, K. E., Prudhomme, C., Fabiani, M., Beck, D. M., Lleras, A. & Gratton, G., Dec 2012, In: Journal of cognitive neuroscience. 24, 12, p. 2321-2333 13 p.

Research output: Contribution to journal › Article › peer-review

Perceiving control over aversive and fearful events can alter how we experience those events: An investigation of time perception in spider-fearful individuals

Buetti, S. & Lleras, A., 2012, In: Frontiers in Psychology. 3, SEP, Article 337.

Research output: Contribution to journal › Article › peer-review

2011

Age-related effects in inter-trial inhibition of attention

Wan, X., Voss, M. & Lleras, A., Sep 2011, In: Aging, Neuropsychology, and Cognition. 18, 5, p. 562-576 15 p.

Research output: Contribution to journal › Article › peer-review

Brief and rare mental "breaks" keep you focused: Deactivation and reactivation of task goals preempt vigilance decrements

Ariga, A. & Lleras, A., Mar 2011, In: Cognition. 118, 3, p. 439-443 5 p.

Research output: Contribution to journal › Article › peer-review

Rapid resumption of interrupted search is independent of age-related improvements in visual search

Lleras, A., Porporino, M., Burack, J. A. & Enns, J. T., May 2011, In: Journal of Experimental Child Psychology. 109, 1, p. 58-72 15 p.

Research output: Contribution to journal › Article › peer-review

2010

Brief and rare mental " breaks" keep you focused: Deactivation and reactivation of task goals preempt vigilance decrements

Ariga, A. & Lleras, A., Mar 16 2010, In: Developmental cell. 18, 3, p. 439-443 5 p.

Research output: Contribution to journal › Article › peer-review

Rescuing stimuli from invisibility: Inducing a momentary release from visual masking with pre-target entrainment

Mathewson, K. E., Fabiani, M., Gratton, G., Beck, D. M. & Lleras, A., Apr 2010, In: Cognition. 115, 1, p. 186-191 6 p.

Research output: Contribution to journal › Article › peer-review

Saccadic repulsion in pop-out search: How a target's dodgy history can push the eyes away from it

Caddigan, E. & Lleras, A., 2010, In: Journal of vision. 10, 14, p. 1-9 9 p.

Research output: Contribution to journal › Article › peer-review

The effect of feature discriminability on the intertrial inhibition of focused attention

Wan, X. & Lleras, A., Jun 2010, In: Visual Cognition. 18, 6, p. 920-944 25 p.

Research output: Contribution to journal › Article › peer-review

2009

Covert shifts of attention function as an implicit aid to insight

Thomas, L. E. & Lleras, A., May 2009, In: Cognition. 111, 2, p. 168-174 7 p.

Research output: Contribution to journal › Article › peer-review

Focused spatial attention is independent of rapid resumption of an interrupted search

Lleras, A. & Enns, J. T., Apr 2009, In: Attention, Perception, and Psychophysics. 71, 3, p. 565-577 13 p.

Research output: Contribution to journal › Article › peer-review

Alejandro Lleras

Research output

Search results