Week 6: Writing Assignment
Answer ONE of the following questions based on this week's
material (one-page MAX, PDF format, email to email@example.com with
Subject "Cogs 160: HW 6", due next Friday). State
clearly which question you are responding to. You may
also answer up to two bolded questions on the wiki for
week 5, as extra credit (10% each).
- Summarize the evidence that musically trained subjects have
enhanced subcortical representations of pitch, timbre, and
timing, compared to non-musicans.
- Is the enhanced representation of pitch, timbre, and timing
in musicians, compared to non-musicians, the resut of a
self-selection process (those better at these things are the
ones that become musicians), or the causal consequences of
musical training? Provide experimental evidence to support
- What is the efficient coding hypothesis? What does it mean in
the context of tuning curve for the grasshopper auditory
receptor? Discuss this for the two cases of with and without
noise in neural response. (See Figure 1 of Machens et al,
Is the fact that r-OSE's collapse onto a single solution when
input solution when input space is transformed by "clipping"
surprising? Explaining why or why not.
Use Fig. 4 of Machens et al (2005) to explain why OSE should
prefer maximal output entropy while minimizing noise entropy.
Why do the two trade off?
How can Machens et al's claim that "auditory neural code is
optimized for behavioral relevant stimuli" be further
substantiated? Describe what kind of new data they could
collect, and/or analysis they could perform.
Last modified: Mon May 9 01:51:41 EDT 2011