Faculty in the Cognitive Program have specific research interests that provide broad coverage of topics within cognitive psychology, including:
- Problem solving and reasoning
- Learning and memory
- Attention and executive control
- Emotion and motivation
- Social and collaborative processes in cognition
Three domains of investigation have particularly strong representation:
- Language, reading, and text processing
- High-level cognition, complex learning and instruction
- Cognitive neuroscience
Overall, two features distinguish our program: an emphasis on crossing traditional research boundaries and an interest in bridging between basic and applied research.
Crossing Traditional Research Boundaries
The strong interdisciplinary perspective and the collaborative research activities of faculty in the Cognitive Program encourage students to cross traditional research boundaries.
Students and faculty in the program have their offices in the Learning Research and Development Center (LRDC). The LRDC is one of the world's leading centers for exploring the interface between education and cognitive theory. LRDC faculty have appointments in psychology, law, education, computer science, linguistics, and neuroscience.
Program faculty and students also participate in the Center for the Neural Basis of Cognition (CNBC), which involves researchers in psychology, neuroscience, neurobiology, biology, computer science, statistics, mathematics, and robotics who use a variety of methods to investigate the interface between cognition and neuroscience. Graduate students interested in cognitive neuroscience can participate in a joint training effort with the CNBC.
Finally, there are connections between the University of Pittsburgh and the adjacent campus of Carnegie Mellon University (CMU). Pitt students are able to cross-register for CMU classes. The CNBC has faculty and graduate students from both universities, and an annual symposium highlights the work of psychology graduate students in both universities.
The program is also rich in methodological expertise, another factor that broadens the perspectives and skills of its students. Collectively, the faculty in the program conduct research based on traditional accuracy and reaction time studies of behavior, protocol analysis, functional neuroimaging (fMRI and PET) of brain cerebral blood-flow, computational modeling of cognitive processing, observational field work, event-related potential recording of brain electrical activity, neuropsychological studies in subjects with brain damage and abnormal cognition, and eye-tracking studies of word, text, and image processing. Students typically combine two or more methods in the course of their research training, and often work jointly with several faculty members.
Bridging Basic and Applied Research
Many members of the Cognitive Program have a component of their research that seeks to bridge basic and applied issues. They apply cognitive principles to complex real-world problems, and use the insights gained from such endeavors to inform theories of cognition. One broad bridge-building topic is learning and instruction.
Faculty in the program combine an interest in how knowledge in specific content areas (e.g., math, science, history, reading) is represented, how knowledge and skills change with the development of expertise, and how content in these areas can best be learned, in both formal (e.g., classroom) and informal (e.g., the Internet) settings, and with both human and computer instruction. For instance, Melissa Libertus’s work focuses on how numbers are represented in the brain and how these representations change with age. At the same time, she studies how these representations are related to children’s and adults’ math abilities and the ways in which parents and teachers instruct children in math.
As another example, there is an important connection between normal cognition and issues in clinical psychology and psychiatry. The aims are to use knowledge about normal cognitive processes and supporting brain regions to better understand breakdowns in cognition and behavior, and conversely to make use of information about cognitive deficits and patterns of preserved performance to better inform cognitive models and theories of brain function. For instance, Greg Siegle's work focuses on the interplay between emotional and cognitive processing. Imbalances between the brain regions that support cognitive and emotional processing are a prominent aspect of depression, and thus the lab also has an interest in understanding the causes and treatment of affective disorders.
As another example, neuroimaging work in Julie Fiez's lab challenges the traditional notion that verbal working memory relies upon a phonological store located in the inferior parietal cortex. To further substantiate these findings, the lab is now investigating the patterns of preserved and impaired working memory performance associated with damage to the parietal cortex.
AREAS OF RESEARCH INTEREST
Attention and executive control
Emotional and affective influences on cognition
High-level cognition, complex learning, and instruction
Language, reading, and text processing
Learning and memory
Problem solving and reasoning
Social and collaborative processes in cognition