Question 1
Research on the perception of pitch has shown that
◦ frequency theory works best for frequencies above 5,000 Hz.
◦ place theory works best for frequencies below 1,000 Hz.
◦ between 1,000 and 5,000 Hz both place and frequency theories can operate.
◦ between 1,000 and 5,000 Hz, neither place nor frequency theory works.
Question 2
Research suggests that our moment-to-moment visual impressions of the world do not preserve precise details. One reason for this less-than-perfect representation may be that
◦ boundary extension contributes to memories.
◦ temporal integration is emplyed when it is not needed.
◦ spatial integration is used when temporal integration is needed.
◦ the visual system is not sufficiently developed to register details.
Evolution of tetrapod visual opsins
visual field
Modern Human Fossil Sites in the Old World
Regions of the Human Visual Cortex and Their Functions
World Distribution of Temperature
Cretaceous world