Dr Christoph Weidemann
Associate Professor
Psychology
Telephone: (01792) 606766
Room: Office - 720
Seventh Floor
Vivian Building
Singleton Campus

Cognitive processes, such as those involved in perception, memory and decision making, are highly context dependent. Previous experiences, expectations, and goals all shape how sensory input is transformed into percepts, how memories are stored and retrieved and how available information is evaluated to guide behavior. This feature of human information processing is fascinatingly pervasive and can be easily experienced, especially in cases when it leads to errors. For example, it is often difficult to identify a familiar face outside of its usual context ("the butcher on the bus" phenomenon) and the the erroneous repetition of written words often goes unnoticed ("repetition blindness"; an example is embedded in this very sentence).

Despite leading to errors in some cases, the integration of context with current processing is integral to cognition because it constitutes the foundation for learning and adaptive behavior. My research investigates how context shapes human information processing. To this end I measure accuracy and speed of overt behavior as well as activity in the human brain as assessed with tools such as electroencephalography (EEG), magnetoencephalography (MEG) and direct recordings from electrodes that are implanted in the brains of neurosurgery patients. A particular emphasis of my work is on the development of precise theoretical accounts (mathematical models) of cognitive processes that are informed and constrained by measured overt behavior and brain activity.

Please click here for more information

Publications

  1. Assessing theoretical conclusions with blinded inference to investigate a potential inference crisis. Advances in Methods and Practices in Psychological Science
  2. & Neural activity reveals interactions between episodic and semantic memory systems during retrieval.. Journal of Experimental Psychology: General 148(1), 1-12.
  3. & Dynamics of brain activity reveal a unitary recognition signal.. Journal of Experimental Psychology: Learning, Memory, and Cognition
  4. & Intact word processing in developmental prosopagnosia. Scientific Reports 7(1)
  5. & Localized component filtering for electroencephalogram artifact rejection. Psychophysiology

See more...

Teaching

  • PSGR02 Year Abroad at Groningen University

    This module is for Psychology students taking the intercalary study year at Groningen University.

  • PSGR04 Year Abroad, Trinity College Dublin

    This module is for Psychology students taking the intercalary study year at Trinity College Dublin.

  • PSGR06 Year Abroad, University of New Brunswick

    This module is for Psychology students taking the intercalary study year at University of New Brunswick

  • PSGS07 Year Abroad, Queensland University of Technology

    This module is for Psychology students taking the intercalary study year at Queensland University of Technology, Brisbane.

  • PSGS08 Year Abroad, Wilfrid Laurier University

    This module is for Psychology students taking the intercalary study year at Wilfrid Laurier University, Canada.

  • PSGS09 Year Abroad, Brock University

    This module is for students undertaking the BSc (Hons) Psychology and BSc (Hons) Psychology and Criminology with an intercalary study year at Brock University.

  • PSGS10 Year Abroad, University of Canterbury

    This module is for students undertaking the BSc (Hons) Psychology and BSc (Hons) Psychology and Criminology with an intercalary study year at University of Canterbury.

  • PSGS12 Year Abroad, University of Texas at Austin

    This module is for students undertaking the BSc (Hons) Psychology and BSc (Hons) Psychology and Criminology with an intercalary study year at University of Texas at Austin.

  • PSGS13 Year Abroad, University of Victoria

    This module is for students undertaking the BSc (Hons) Psychology and the BSc (Hons) Psychology and Criminology with an intercalary study year at University of Victoria.

  • PSGS15 Year Abroad, Aarhus University

    This module is for students undertaking the BSc (Hons) Psychology (either single or joint honours) with an intercalary study year at Aarhus University.

Supervision

  • Choice response time modelling of context effects in cognition: Applications of the linear ballistic accumulator model. (current)

    Student name:
    PhD
    Other supervisor: Dr Stephen Johnston
  • Investigating the Determinants of Imitation in Infants and Young Children (current)

    Student name:
    PhD
    Other supervisor: Dr Vicky Lovett