Exam 6: Object Recognition

Why is object constancy a difficult computational problem for the visual system? Describe some potential changes that can occur when we view the same object under different circumstances. How do view-dependent and view-invariant approaches to perception explain object constancy?

Anatomical outputs from the occipital lobe follow two major axon bundles that terminate in the and .

When patients in vegetative states show typical brain activity after being asked to imagine something, how do we know this is not automatic priming?

How can researchers use our knowledge of the visual system to maximize the decoding of brain activity? What factors currently limit decoding performance?

The dorsal visual pathway is associated with the parietal lobe.

With regard to perception, the term feature refers to

To create an effective encoding model of the brain's visual activity, what properties should be used to model V1 voxel activity?

What categories of visual stimuli have regions of cortex that are activated when a person views examples from each category? Describe one approach that can establish a causal role of each region for perceiving these categories. Why is this evidence that these regions are involved in processing these categories?

Which of the following visual object properties best illustrates the concept of a visually invariant property?

Explain a category-based and property-based organization of semantic knowledge. Discuss evidence in favor of each account.

How can decoding techniques allow us to communicate with patients in a vegetative state? Include an explanation of why we know patients are not just showing automatic brain responses.

When a person who has learned to read proficiently subsequently develops reading problems as a result of brain injury, this deficit is called

The patient D.F., studied by Goodale and Milner 1982), had severe problems with object recognition. When presented with a circular block into which a slot had been cut,

During a single-cell recording study, you locate a neuron in one of the two main output pathways from the occipital cortex that has a large receptive field in the central part of the visual field. The cell probably lies inside the pathway and is specialized for .

Which of the following is NOT a problem with the idea that single neurons encode the mental representations for all possible complex visual stimuli?

The fusiform face area is part of the dorsal stream.

When her telephone rings, a patient who has been diagnosed with visual object agnosia immediately picks up the receiver and answers it correctly. Why doesn't this person show any signs of an object recognition deficit in this scenario?

A major distinction in the study of visual agnosia is that between apperceptive agnosia and associative agnosia.

A patient who has difficulty matching pictures of the same object taken from different vantage points may be showing which dysfunction?

One limitation of view-dependent theories of object recognition is that