M.Sc. Cognitive Neuroscience

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Theoretical Questions

Question 1:

What is the drift diffusion model a model of?

The drift diffusion model is computational model for the two-forced-alternative choice paradigm wherein subjects must choose between one of two possible decisions. For example: do you see a car or a face? 

The model assumes that during the task the subject is accumulating evidence for one of the two alternatives and integrating the evidence in a stochastic fashion until the point where the evidence crosses one of the two decision boundaries and the subject makes a decision. 

For more information on the model and its implementation, please join the SCAN MSc program!

Question 2:

What are bistable images? Why are they sometimes used in cognitive neuroscience?

Some classic examples of bistable images are the Necker cude and Schroeder staircase which are ambiguous images which can be perceived in one of two possible interpretations. The majority of the images lead to an alternation between the two mutually exclusive perceptual states and thereby allow researchers to examine the causes of the change between the perceptual states.  

If you would like more information on the subject join the SCAN MSc program!

Question 3:

Select those that are considered 'basic emotions'.

The idea of basic emotions is from Ekman and Friesen's classic cross-cultural study where they showed pictures of people displaying various emotions to a large number of different cultures and concluded that there are six basic emotions: anger, disgust, fear, happiness, sadness and surprise.  

(Ekman, P., & Friesen, W. V. (1971). Constants across cultures in the face and emotion. Journal of personality and social psychology17(2), 124.)

If you would like more information on the subject join the SCAN MSc program!

Question 4:

What is Theory of Mind (ToM)?

Theory of mind or ToM is the ability to attribute mental states - beliefs, intents, desires, pretending, knowledge etc. - to oneself and others and to understand that others have beliefs, desires, intentions, and perspectives that are different from one's own. 

(citation: http://en.wikipedia.org/wiki/Theory_of_mind)

If you would like more information on the subject join the SCAN MSc program!

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