was very difficult to achieve....

this course is very interesting

Very intriguing and logical.

Good, I learned a lot.

It is a great course.

Really great course!

Exeptional course

Excellent course!

A revelation...

It's good

Brillant

My long term curiosity of the question, 'why do we perceive the world - the way we do?' - has been either answered or shown a path for deeper understanding. Being a Mechanical Engineering student, I had almost none prior knowledge regarding human brain and its anatomy - but that wasn't an issue either! - everything has been explained very well with examples and wonderful illustrations.

Thank You Duke University and Coursera, for such an amazing course!

Course was amazing. It deals with how to correctly understand visual illusions through empirical data collection. It does not delve into the anatomical aspects, or the cellular aspects, of vision. Some drawbacks would be the lack of explanation on how to model or collect the data, which is probably too complicated to state in a online course anyway.

great layout and well presented. concepts were stimulating and I felt I learnt a lot. I would have liked some discussion around topics such as amblyopia and development, effects of observer movement, and the links between visual perception and the vestibular system. Having said that, I think the content was plenty for a 5 week course.

I really liked Dr. Purves as a lecturer, and I really got a lot out of this course, including some really good illustrations and explanations. However, it was a very difficult course, and I felt the final assignment was very difficult to complete.

The course is very interesting, it explains the basic features of the human visual system in a nice and understandable way, providing many interesting example of how our perceptron is affected by the external world and our own experience.

It is a must for all those who would love to explore vision at the perspective of neuroscience and evolution.

Although the course material is absolutely fantastic. Some concepts should be elucidated further.

Very well researched and articulate professor, incredibly knowledgeable.

Great Job!

The course is interesting and fairly entertaining. It enters scientific details to a certain degree, keeping entry-level enough to be understood by not-science students/experts. It gives a lot of examples of the "weird way" humans see, and it tries to explain each of them, from shapes to colours, from movements to depth. Professor Purves’s explanations are all empirical, following his theory, and leaving the "why do we see how we see?" question actually unanswered. Some of the questions and answers of the quizzes are confusing/wrong and need review. The peer-to-peer review system is kind of pointless.