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Cognitive Science

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143 Cognitive Science Building

All courses, faculty listings, and curricular and degree requirements described herein are subject to change or deletion without notice.

The Graduate Programs

There are two PhD programs, each with different admissions and graduation requirements. The Department of Cognitive Science offers a PhD in cognitive science. Students are admitted to UC San Diego directly into the department and fulfill degree requirements of the department. The Interdisciplinary PhD Program in Cognitive Science offers a joint PhD in cognitive science and a home department (anthropology, communication, computer science and engineering, linguistics, neurosciences, philosophy, psychology, or sociology). Students are admitted to UC San Diego through the home department and fulfill the requirements of both the interdisciplinary program and the home department.

PhD in Cognitive Science

This program provides broad training in neurological processes and phenomena; the experimental methods, results, and theories from the study of psychology, language, and social and cultural issues; and the studies of computational mechanisms. The first year is devoted to familiarizing the student with the findings and current problems in cognitive science through courses in foundations and issues.

By the second year, basic courses and laboratory rotations are completed, with the major emphasis on the completion of a year-long research project. Future years are spent completing the advancement to candidacy requirements and doing the thesis research. Throughout the program, there are frequent faculty-student interactions, including special lectures by the faculty or invited speakers and the weekly informal research discussions and cognitive science seminar.


The admissions committee reviews each applicant’s statement of purpose, letters of recommendation, GRE scores, previous education and work experience, and grade point averages, then recommends candidates for admission to the entire faculty, who make the final decision.


An interim adviser is appointed to serve as general adviser and counselor for each entering student. The adviser helps chart a set of courses that fulfill the content area requirements, taking into account the student’s prior training and interests. Students may change the interim adviser at any time (as long as the new interim adviser is willing). At the time of advancement to candidacy, students choose a permanent adviser who also functions as the chair of the dissertation committee.

All entering students are assumed to have basic prerequisite knowledge, and a list of basic readings will be provided to incoming students. Students who do not have this background can acquire it through self-study in the summer preceding arrival at UC San Diego or by taking self-paced study courses or relevant undergraduate courses at UC San Diego.

Summary of Requirements

  1. Foundations courses
  2. Approved study plan, which includes issues courses, methods courses, and laboratory rotations
  3. Second-year project
  4. Language requirement
  5. Advancement to candidacy
  6. Teaching
  7. Cognitive Science 200 seminar
  8. Participation in departmental events and committees
  9. PhD dissertation and defense

Description of Requirements

  1. Foundations Courses (COGS 201, 202, 203). Students complete foundations courses in the areas of brain, behavior, and computation by the end of the second year. The department may waive some or all courses for students who already have the required knowledge.
  2. Study Plan. Students complete a study plan recommended by their adviser. The normal plan includes
    1. Courses. A minimum of four courses are required. Upper-division undergraduate courses are acceptable by petition. At least two of the courses should be taken within the department. Department recommends completion by the end of the second year. Courses taken outside the department require the approval of the adviser. All courses must be taken for a letter grade.
    2. Methods Courses. One approved statistics or statistics learning course and one programming course. An approved list of courses can be found online. Upper-division undergraduate courses and courses not on the approval list are acceptable by petition. Such petitions must be approved by the adviser. All courses must be taken for a letter grade.
    3. Laboratory Rotations (COGS 290). A total of three quarters of laboratory rotations in at least two different faculty laboratories are required. Each rotation is for one to two full quarters as required by the faculty laboratory. All rotations should be completed by the end of fall quarter of the second year.

      Students can meet this requirement in the following ways:

      • Three one-quarter rotations in three different laboratories, or

      • One one-quarter rotation and one two-quarter rotation in two different laboratories, or

      • Two two-quarter rotations in two different laboratories for a total of four quarters enrolled in COGS 290.

      Department recommends that student and adviser negotiate a topic and activity, then put the agreement in writing, sign, and give to the graduate coordinator.

  3. Second-Year Research Project (COGS 210A-B-C and 211A-B-C). In the summer between the first and second year, students work with their adviser and a faculty committee to develop a prospectus for a research project. The yearlong project culminates with written and oral presentations to the faculty at the end of spring quarter. During the second year, concurrent enrollment in COGS 210A-B-C and COGS 211A-B-C is required as part of the Second Year Project.
  4. Language Requirement. The main goal of the language requirement is to give all students firsthand experience with some of the differences in structure and usage of languages and the several issues involved in the learning of second languages. This requirement can be satisfied by demonstrating satisfactory proficiency, by prior study in a language (e.g., two years of high school study), or by satisfactory completion of one quarter of study in a language course approved by the department.
  5. Advancement to Candidacy/Qualifying Paper and Oral Exam. There are three components to advancement to candidacy:
    1. Competency.
    2. Depth. This requirement is met by satisfactorily completing a talk to the entire department on their thesis topic by the end of the fourth year. A first draft of the thesis proposal must be submitted to the student’s adviser by the end of the fourth year. Students enroll in COGS 205 during winter and spring quarter of the third or fourth year. Students who do not complete this requirement in their third year must check in with the graduate adviser and possibly be further evaluated by a three-person committee.
    3. Dissertation Topic/Advancement Exam.
  6. Teaching (COGS 500). All graduate students must serve as a teaching assistant at least one quarter of each academic year in residence. The undergraduate program offers a special challenge to instructor and student alike, and experience with the teaching of that program can provide a valuable part of the education of a cognitive scientist. Teaching assistantships performed in other departments must be approved by formal petition to the graduate committee to count toward the requirement. The department works closely with the Center for Teaching Development to design effective training and development programs for its teaching assistants. At the end of each quarter, instructors prepare written evaluations of all teaching assistants.
  7. COGS 200 Seminar. Students must enroll in this seminar for two quarters while in residence; frequent participation is encouraged.
  8. Participation in Departmental Events and Committees. Students participate in departmental special events and committees and serve as student representatives for faculty meetings and the campus wide Graduate Student Association. Students present their research in the undergraduate SCANS series.
  9. Completion of the PhD Dissertation and Defense. Candidates prepare a written dissertation demonstrating a substantive contribution to our understanding of cognition. An oral defense follows.

Master’s Degree

The Department of Cognitive Science does not offer admissions to a master’s program. However, candidates for the PhD may be granted the MS after fulfilling the first three requirements listed above. This is usually at the end of the second year.

Evaluation of Performance and Progress

A formal evaluation of performance and progress for all students takes place at the end of spring quarter every year, with special attention given to the first and second years of study and at the time of qualification. The first-year evaluation is based in large part on the performance in foundations and issues courses. The second-year evaluation is based on the student’s total performance, with heavy weight given to the student’s second-year research project. The third-year evaluation focuses on the competency and depth requirements, and the following years on the progress made toward completion of the dissertation.

Special Events

The department intends to enhance student-faculty interaction and current awareness of active research issues by special events:

  • Lectures by invited speakers or faculty members
  • A full day of faculty/student overview and information at the start of each year, with emphasis on ongoing research activity
  • Presentations of second-year research projects and third-year thesis topics to the entire faculty at the end of each year
  • Final defense of the dissertation accompanied by a public lecture and celebration

Time Limits to PhD

Students must be advanced to candidacy by the end of spring quarter of their fourth year. Total university support cannot exceed seven years. Total registered time at UC San Diego cannot exceed eight years.

Financial Aid

Financial support is available to qualified students in the form of fellowships, loans, and assistantships. Students are encouraged to seek fellowships and research awards from outside the university. Please refer to the Graduate Studies section for more information.

The Interdisciplinary PhD Program (IDP)

The interdisciplinary PhD program is distinct from the departmental PhD program (see previous section) both in admissions and graduation requirements. There are four aspects to graduate study in the interdisciplinary program: (a) a primary specialization in one of the established disciplines of cognitive science; (b) a secondary specialization in a second field of study; (c) familiarity with general issues in the field and the various approaches taken to these issues by scholars in different disciplines; and (d) an original dissertation project of an interdisciplinary character. The degree itself reflects the interdisciplinary nature of the program, being awarded jointly to the student for studies in cognitive science and the home department. Thus, students in linguistics or psychology will have degrees that read “PhD in Linguistics and Cognitive Science” or “PhD in Psychology and Cognitive Science.”

Admission to the Program

Students enter UC San Diego through admission to one of the affiliated departments, which then serves as their home department, and that specifies their primary specialization. The affiliated departments are anthropology, communication, computer science and engineering, linguistics, neurosciences, philosophy, psychology, and sociology. Students may apply for admission to the interdisciplinary program any time after entering UC San Diego, preferably in the second or third year. Students must have an adviser from their home department who is a member of the interdisciplinary program faculty. If a student does not have such an adviser, a member of the Instructional Advisory Committee will be appointed as interim adviser. The Instructional Advisory Committee is made up of one interdisciplinary program faculty person from each of the home departments. The committee member that will serve as interim adviser for a student will come from the same home department as the student.

Note: Admission to the interdisciplinary PhD program is contingent upon applying to and being accepted in a home department.

Primary Specialization

Primary specialization is accomplished through the home department. Students are expected to maintain good standing within their home departments and to complete all requirements of their home departments through qualification for candidacy for the PhD.

Secondary Specialization

The power of an interdisciplinary graduate training program lies in large measure in its ability to provide the student the tools of inquiry of more than one discipline. Students in the cognitive science interdisciplinary program are expected to gain significant expertise in areas of study outside of those covered by their home departments. Such expertise can be defined in several ways. The second area might coincide with that of an established discipline, and study within that discipline would be appropriate. Alternatively, the area could be based upon a substantive issue of cognitive science that spans several of the existing disciplines, and study within several departments would be involved. In either case, students work with their adviser and the Instructional Advisory Committee to develop an individual study plan designed to give them this secondary specialization. The secondary specialization typically consists of either six courses outside the home department or the equivalent of spending a year working in a lab outside the home department. This requirement can take the equivalent of a full year of study (e.g., two courses per quarter), possibly spread out over several years.

The following list demonstrates some ways to fulfill the secondary specialization requirement. It should be emphasized that these programs are only examples. Most commonly, students devise individual plans by working with their advisers and the advisory committee. Ideally, students who elect to do research in their areas of secondary interest will be able to accomplish a substantive piece of work, either one of publishable quality or one that will be of significant assistance in their dissertation projects.

Cognitive Psychology. Get a basic introduction to cognitive psychology through the Cognitive Psychology Seminar (PSYC 218A-B) and acquire or demonstrate knowledge of statistical tools and experimental design (this can be done either by taking the graduate sequence in statistics, PSYC 201A-B, or through the standard “testing out” option offered to all psychology graduate students). Finally, and perhaps of most importance, the student should do a yearlong project of empirical research in psychology with the guidance of a member of the Department of Psychology.

Cognitive Social Sciences. A course sequence from sociology and anthropology, including one or two courses in field methods and a research project under the direction of a cognitive social sciences faculty member. The course sequence and project should be worked out with the advisory committee to reflect the interests and background of the student. Examples of courses include Distributed Cognition (COGS 234), Text and Discourse Analysis (SOCI 204), and the Anthropology of Language and Discourse (ANTH 263). In addition, courses on field methods are offered by both anthropology and sociology.

Computer Science and Natural Language. This specialization requires a thorough background in computer science. For those who enter the program without much formal training in this area, it would be advisable to prepare by taking upper-division CSE classes (e.g., CSE 100, 102, 105) before embarking on the secondary specialization. (Note that these courses require basic knowledge of programming and discrete mathematics areas that may require some additional undergraduate courses for those who lack these skills.) Students with stronger backgrounds in computer science may go straight to graduate courses. For all students interested in this specialization, the course sequences and any projects should be worked out on an individual basis with the student’s adviser.

Discourse Structure and Processing. This specialization is highly interdisciplinary, spanning linguistics, computer science, psychology, sociology, philosophy, and anthropology. Research within this specialization depends upon which discipline is given emphasis. Therefore, the specialization will have to be developed according to the interests of the student. All students will have to demonstrate awareness and knowledge of relevant studies and the approaches of the various disciplines.

Linguistics. Students who elect a secondary specialization in linguistics should specialize either in the general area of syntax/semantics or in the general area of phonetics/phonology. Those who specialize in syntax/semantics should plan to take three courses in this area and one course in phonetics/phonology. Conversely, those who specialize in phonetics/phonology should plan to take three courses in this area and one course in syntax/semantics. The specific courses recommended will depend on the individual student’s interests and should be arranged in conjunction with the Department of Linguistics faculty liaison to the Cognitive Science Interdisciplinary Program.

Neurosciences. A student specializing in neurosciences, depending on their background, would usually take Basic Neurosciences: Systems Neuroscience (NEU 200B) and Basic Neurosciences: Cognitive and Behavioral Neurosciences (NEU 200C). Depending on interest, other suitable courses would be Mathematical Foundations for Computational Neuroscience (NEUG 240), Neural Dynamics of Cognition (COGS 201), The Physiological Basis of Human Information (NEU 243), or Advanced Topics: Animal Models of Neuropsychiatric Disorders (NEU 221). In many cases, the student would also take a research rotation in the laboratory of a member of the neurosciences faculty.

Philosophy. Students who elect a secondary specialization in philosophy will focus on philosophy of science, philosophy of mind, philosophy of psychology, philosophy of neuroscience, or philosophy of language, depending on their area of primary specialization. Courses suitable for this program include Core Course in Philosophy of Mind (PHIL 207), Core Course in Philosophy of Language (PHIL 208), Philosophy of Language (PHIL 234), Philosophy of Mind (PHIL 236), Philosophy of the Cognitive Sciences (PHIL 250A), and Seminar on Special Topics (PHIL 285), which will frequently focus on issues relevant to cognitive science. The course sequence should be worked out with the student’s adviser.

Achieving Breadth in Cognitive Science

There are two sets of requirements here. The first is to take two of the three cognitive science foundations courses, depending on interest: Neural Dynamics of Cognition (COGS 201), Cognitive Science Foundations: Computational Modeling of Cognition (COGS 202), or Cognitive Science Foundations: Theories and Methods in the Study of Cognitive Phenomena (COGS 203). The role of these courses is to provide IDP students with a common background and introduce them to their cohort in the Department of Cognitive Science.

The second requirement, in order to provide breadth in cognitive science, is to take three instances of Cognitive Science Seminar (COGS 200). COGS 200 emphasizes an interdisciplinary approach to the field and covers a variety of different problems, each from the perspective of several disciplines. The topics are ones of interest to the IDP program faculty or of interest to departmental or IDP PhD students, who may work with an adviser to suggest a topic and speakers for the quarter. All students are required to enroll in this seminar a total of three quarters while in residence; most students regularly attend the seminar even after fulfilling the requirement. Students may substitute another seminar of similar structure (e.g., COGS 260) for one of the three quarters. Students may take these three at any time during their graduate career.

Prequalifying Examinations

Students must complete any prequalifying and field requirements of their home department.

Qualifying Examinations

The Dissertation Advisory Committee. As soon as possible, students form a dissertation committee consisting of

  • At least three members from the student’s home department, including the student’s adviser who should be a member of the program faculty. The two outside members of the student’s committee must also be members of the cognitive science program faculty.
  • University regulations require that at least one of the faculty members of the committee from outside the home department must be tenured.
  • The committee must be approved by the interdisciplinary program, the home department, and by the dean of Graduate Studies. The dissertation committee is expected to play an active role in supervising the student and to meet with the student at regular intervals to review progress and plans.
  • In the qualifying examination, the student must demonstrate familiarity with the approaches and findings from several disciplines relevant to the proposed dissertation research and must satisfy the committee of the quality, soundness, originality, and interdisciplinary character of the proposed research.

Interdisciplinary Dissertation

It is expected that the dissertation will draw on both the primary and secondary areas of expertise, combining methodologies and viewpoints from two or more perspectives, and that the dissertation will make a substantive contribution to the field of cognitive science.


The program can be summarized in this way:

In the first years, basic training within the student’s primary specialization, provided by the home departments.

In the middle years, acquisition of secondary specialization and participation in the Cognitive Science Seminar.

In the final years, dissertation research on a topic in cognitive science, supervised by faculty from the program.

Time Limits: Time limits for precandidacy, financial support, and registration are those established for the home department. Normative time is six years.

Specialization in Anthropogeny

This is a transdisciplinary graduate specialization in anthropogeny with the aim of providing graduate students the opportunity to specialize in research and education on explaining the origins of the human phenomenon. The aim is to rectify the absence of existing training programs that provide such a broad and explicitly transdisciplinary approach—spanning the social and natural sciences—and focusing on one of the oldest questions known to humankind, namely, the origins of humans and humanity. This specialization is not a stand-alone program but aims at providing graduate students who have just embarked on their graduate careers with the opportunity to interact and communicate with peers in radically different disciplines throughout the duration of their PhD projects. Such communication across disciplines from the outset is key to fostering a capacity for interdisciplinary “language” skills and conceptual flexibility.

Admission to the Specialization

The Cognitive Science graduate program will advertise the specialization to those students in our programs who have an interest in human origins. Qualifying applicants will have the opportunity to enroll for the specialization.

Specialization Requirements

Students pursuing this specialization will be required to take a series of courses in addition to research rounds over four years of study. It is advised that students begin their course work in their third year.

  1. Course Work: Introduction to Anthropogeny (BIOM 225) and Advanced Anthropogeny (BIOM 229) are each taken once, in the winter and spring of the students third year. Current Topics in Anthropogeny (BIOM 218) is to be taken every quarter for four years.
  2. Research Rounds: Monthly seminars during which all participating students talk about their respective research.

Qualifying Examination

Cognitive Science students in the anthropogeny specialization must meet the departmental requirement for advancement to candidacy. In addition, students must meet internal deadlines, mentoring provisions, and proposal standards of the anthropogeny specialization track.


PhD students must complete a dissertation, which meets all requirements of the home program. In addition, it is expected that the PhD dissertation is broadly related to human origins and will be interdisciplinary in nature.

Time Limits

It is expected that students will retain the same time to degree as students not pursuing this specialization. Additional course load consists only of two regular courses (two quarters twenty lectures each). The third proposed course takes place only three times a year from Friday noon to Saturday evening.

Specialization in Human-Centered Design

The graduate specialization is a set of courses students can choose to take that fits into their home degree program requirements. It is analogous to receiving a minor, but at the graduate level. As such, the specialization does not alter home program requirements. Instead, the courses fit into their home program as either electives or as courses that were already part of their core requirements. The graduate specialization is created so that it can be integrated into a one- or two-year master’s program or a PhD program.

All students who seek the specialization are required to take:

DSGN 201 (four units)

DSGN 219 (one unit)

Cognitive science students should take two courses from this list:

COGS 220. Information Visualization

COGS 230. Topics in Human-Computer Interaction

COGS 231. Design Seminar on Human-Centered  Programming

COGS 260. Crowdsourcing

Cognitive science students should take one course to meet the power, privilege, and ethical response requirement, from this list:

FMPH 258C. Ethics in Public Health Research and Practice

FMPH 460. Design and Public Health

COGR 275. Design and Politics

COGR 275. Mediated Ability: Media, Technology, and [Dis]ability

COGR 275. Ability/Cultures of Care

COMM 275. Advanced Topics in Communication: Designing for Access

COMM 275. Advanced Topics in Communication: Disabling Modernism

All other requirements (e.g., projects such as theses/dissertations, teaching requirements, support) are set in accordance with a student’s home degree program. Just as a minor does not alter a student’s major as an undergraduate, the specialization does not alter any of cognitive science’s home degree program requirements. This specialization is simply a collection of classes that, if taken, represents sufficient training in human-centered design to warrant a specialization designation.

Specialization in Computational Social Science

Computational Social Science (CSS) integrates large-scale data analysis with formal, causal models from social science domains, to not only improve predictions but also guide extrapolation and intervention beyond existing data. Students pursuing the specialization will find a clear path to accessing training in computational social science, a formal mechanism for recognizing their efforts, and access to a broad network of relevant scholars.


The graduate specialization in computational social science is only available to students currently enrolled in a PhD program at UC San Diego in the following School of Social Sciences departments: anthropology, communication, cognitive science, economics, education studies, ethnic studies, linguistics, political science, psychology, and sociology. Doctoral students in these departments may apply for the specialization through the CSS administration, housed in the Department of Psychology, with the endorsement of the student’s primary research adviser and department chair. Students are eligible to join the CSS specialization at any time pre-candidacy; post-candidacy requests are reviewed on a case-by-case basis and may require additional justification relating to time to degree.


In addition to the PhD requirements of their home department, admitted students are required to complete the following requirements:

  • Three quarters of CSS 209. Computational Social Science Research Seminar.
  • Three courses from a list of electives, at least one of which must not count toward the home department PhD requirements, with at least one of these electives drawn from the subset of “advanced data” courses.
  • Appointment to the dissertation committee of at least one CSS affiliated faculty member not affiliated with the student’s home department.
  • Satisfactory completion of a dissertation including a technical and/or computational social science component.