Exam 3: The Visual Brain

Single-cell recording studies in monkeys and fMRI studies in humans have shown that neural activity in area LIP is associated with tasks requiring eye movements to:

Damage to the fusiform face area (FFA) will result in:

Which statement is a CORRECT example of contralateral organization?

In each hemisphere of the brain, about ninety percent of the axons in the optic tract go to the _____, which sends signals to the primary visual cortex (area V1) via the optic radiations.

What information is transmitted by the neurons in the magnocellular layers of the LGN that send signals to layer 4Cα of V1 area in the brain?

Which type of column consists of neurons that receive signals from the left eye or from the right eye?

Which layers of the left lateral geniculate nucleus receive signals from the contralateral eye?

Neurons in the superior colliculus:

Which visual property is processed by the magnocellular layers?

_____ is an arrangement of neurons in the visual system whereby signals from retinal ganglion cells with receptive fields that are next to each other on the retina travel to neurons that are next to each other in each visual area of the brain.

A consistent difference in the patterning of the relative responses of neurons with different orientation tuning curves is called:

The part of the visual pathway that has been described as a "volume control" for the brain is the:

The receptive fields of V1 neurons that receive inputs from:

Which retinal ganglion cells send signals to the magnocellular layers of the lateral geniculate nucleus?

The dorsal pathway receives signals from the:

You are having dinner when you notice something flying around the table. You realize it is a fly, but you keep on eating. Finally, it lands. You track its movement for a few seconds, then reach out and swat it flat. Describe the primary functional modules and visual pathways that are involved at each point in this chain of events.

Area V1 is better known as the:

In the context of main pathways from retina to brain, how would visual processing be affected if the optic chiasm were severed, that is, cut at the crossover point, severing only crisscrossing fibers as a single left-to-right snip? Discuss how the input stream would be affected at LGN and at area V1.

Which hemisphere(s) of the brain represents the right visual field?

The parahippocampal place area (PPA) is found in the _____ cortex.