PASS Week 6 & 7

Which of the following is NOT a feature of the current model of sensory system organization?

• Functionally homogeneous

• Parallel

• Functionally segregated

• Hierarchical

Which of these neuron types is also known as a photoreceptor?

• Amacrine cells

• Bipolar cells

• Rod cells

• Ganglion cells

Features of scotopic vision include…

• It is cone-mediated

• It is rod-mediated

• It is dominant in dim light

• It is dominant in bright light

Which of the options accurately describes visual transduction in rod cells?

• Glutamate release is inhibited in bright environments

• Sodium ion channels are partially open in bright environments

• Rhodopsin molecules are inactive in bring environments

• Glutamate release is facilitated in bright environments

Which statement is the most accurate characteristic of the retina-geniculate-striate pathway?

• Visual input from the left eye is transmitted to the left primary visual cortex

• Stimuli projected onto the temporal retina travels contralaterally to the primary visual cortex

• Stimuli projected onto the nasal retina travels contralaterally to the primary visual cortex

• Visual input from the left eye is transmitted to the right primary visual cortex

The lateral geniculate nucleus has…

• Two top layers called magnocellular layers

• Two top layers called parvocellular layers

• Four top layers called magnocellular layers

• Four top layers called parvocellular layers

What is a scotoma?

• Complete blindness of the visual field

• Distinct areas of blindness in the visual field

• Blindness in the contralateral visual field

• Blindness in the ipsilateral visual field

Which of the following is NOT thought to be processed via the dorsal pathway?

• Texture

• Location

• Movement

• Space

Which option is true of the basilar membrane?

• The tectorial membrane rests on the basilar membrane

• Different locations corresponds to different frequencies

• The basilar membrane is part of the tympanic membrane

• The auditory ossicles send vibrations directly to the basilar membrane

Which of the following is true of the auditory pathway?

• One stage of auditory processing occurs in the tectum

• The cochlear nuclear receives auditory input at the midbrain

• One stage of processing occurs in the medial geniculate nucleus in the tectum

• The superior olives receive auditory input directly from the cochlea