David Sewell

Diffusing the bilingual lexicon: Task-based and lexical components of language switch costs

Gabriel Ong, Meredith McKague, Brendan Weekes, David K Sewell

Journal article  |  2019  |  COGNITIVE PSYCHOLOGY

Bilingual speakers show a response time (RT) cost when switching between languages. These costs could reflect the organization of ..

A diffusion model approach to analyzing performance on the Flanker task: The role of the DLPFC

Sergio Miguel Pereira Soares, Gabriel Ong, Jubin Abutalebi, Nicola Del Maschio, David Sewell, Brendan Weekes

Journal article  |  2019  |  BILINGUALISM-LANGUAGE AND COGNITION

The anterior cingulate cortex (ACC) and the dorsolateral prefrontal cortex (DLPFC) are involved in conflict detection and conflict..

Combining error-driven models of associative learning with evidence accumulation models of decision-making

David K Sewell, Hayley K Jach, Russell J Boag, Christina A Van Heer

Journal article  |  2019  |  PSYCHONOMIC BULLETIN & REVIEW

As people learn a new skill, performance changes along two fundamental dimensions: Responses become progressively faster and more ..

Information Processing Under Reward Versus Under Punishment.

Timothy Ballard, David K Sewell, Daniel Cosgrove, Andrew Neal

Journal article  |  2019  |  Psychol Sci

Much is known about the effects of reward and punishment on behavior, yet little research has considered how these incentives infl..

The separable effects of feature precision and item load in visual short-term memory

Simon D Lilburn, Philip L Smith, David K Sewell

Journal article  |  2019  |  JOURNAL OF VISION

Visual short-term memory (VSTM) has been described as being limited by the number of discrete visual objects, the aggregate quanti..

Limitations of Pure Encoding Capacity Accounts of Visual Short-Term Memory Phenomena: Reply to Bundesen (2018) REPLY

David K Sewell, Philip L Smith, Simon D Lilburn

Journal article  |  2018  |  JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE

In his commentary, Bundesen (2018) argued that limited encoding capacity can account for the near-equivalent set size effects on p..

Feedback discounting in probabilistic categorization: Converging evidence from EEG and cognitive modelling

David Keisuke Sewell, Hayley Anne Warren, Daniel Rosenblatt, Maxwell Lyons, S Bode

Journal article  |  2018  |  Computational Brain & Behavior

In simple probabilistic learning environments, the informational value of corrective feedback gradually declines over time. This i..

Cognitive load effects on early visual perceptual processing

Ping Liu, Jason Forte, David Sewell, Olivia Carter

Journal article  |  2018  |  ATTENTION PERCEPTION & PSYCHOPHYSICS

Contrast-based early visual processing has largely been considered to involve autonomous processes that do not need the support of..

A diffusion model approach to analysing the bilingual advantage for the Flanker task: The role of attentional control processes

Gabriel Ong, David K Sewell, Brendan Weekes, Meredith McKague, Jubin Abutalebi

Journal article  |  2017  |  JOURNAL OF NEUROLINGUISTICS

Elderly bilingual speakers exhibit a response time (RT) advantage on tests of executive function such as the Flanker task. There i..

Object Selection Costs in Visual Working Memory: A Diffusion Model Analysis of the Focus of Attention

David K Sewell, Simon D Lilburn, Philip L Smith

Journal article  |  2016  |  JOURNAL OF EXPERIMENTAL PSYCHOLOGY-LEARNING MEMORY AND COGNITION

A central question in working memory research concerns the degree to which information in working memory is accessible to other co..