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(pdftex.def) Requested size: 455.24411pt x 378.38292pt. ) [3] [4 <./figures/fig_auditory_pathway.pdf>] -Overfull \hbox (40.4313pt too wide) in paragraph at lines 212--223 +Overfull \hbox (40.4313pt too wide) in paragraph at lines 216--227 []\OT1/cmr/m/n/12 ) and, to a lesser ex-tent, the re-cep-tors them-selves ([]) [] [5] -Overfull \hbox (9.43962pt too wide) in paragraph at lines 275--275 +Overfull \hbox (9.43962pt too wide) in paragraph at lines 285--285 []\OT1/cmr/bx/n/17.28 Two mech-a-nisms driv-ing the emer-gence of intensity- [] @@ -676,7 +676,7 @@ Here is how much of TeX's memory you used: 1141 hyphenation exceptions out of 8191 94i,19n,93p,713b,990s stack positions out of 10000i,1000n,20000p,200000b,200000s -Output written on main.pdf (10 pages, 1099791 bytes). +Output written on main.pdf (10 pages, 1100157 bytes). PDF statistics: 1086 PDF objects out of 1200 (max. 8388607) 689 compressed objects within 7 object streams diff --git a/main.pdf b/main.pdf index cec8b5e..b959c09 100644 Binary files a/main.pdf and b/main.pdf differ diff --git a/main.synctex.gz b/main.synctex.gz index 07bb826..fe053d2 100644 Binary files a/main.synctex.gz and b/main.synctex.gz differ diff --git a/main.tex b/main.tex index 25a6296..72f76c6 100644 --- a/main.tex +++ b/main.tex @@ -138,9 +138,9 @@ $\rightarrow$ More general, simpler, unfitted formalized Gabor filter bank The grasshopper auditory system has been studied extensively over the past decades; and a corresponding number of involved neuron types has been described~(\bcite{rehbein1974structure}; \bcite{kalmring1975afferent}; -\bcite{rehbein1976auditory}; \bcite{eichendorf1980projections}). The model we -propose here focuses on the pathway responsible for song recognition and -assumes a strict feed-forward organization of three consecutive neuronal +\bcite{rehbein1976auditory}; \bcite{eichendorf1980projections}). The functional +model we propose here focuses on the pathway responsible for song recognition +and assumes a strict feed-forward organization of three consecutive neuronal populations: Peripheral auditory receptor neurons~\mbox{(1st order)}, local interneurons of the metathoracic ganglion~\mbox{(2nd order)}, and ascending neurons~\mbox{(3rd order)} projecting towards the supraesophageal ganglion. @@ -150,8 +150,12 @@ within the population of ascending neurons compared to receptors and local interneurons, which exhibit almost identical filter characteristics, respectively~(\bcite{clemens2011efficient}). Based on these findings, the model pathway can be divided into two distinct portions~(Fig.\,\ref{fig:pathway}c+d). -The pre-processing portion comprises the tympanal membrane, receptors, and -local interneurons. Due to the similar response properties within the +In the preprocessing portion, generated + +The preprocessing portion comprises the tympanal membrane, receptors, and +local interneurons. The different signal representations + +Due to the similar response properties within the involved 1) "Pre-split portion" of the auditory pathway:\\ @@ -226,10 +230,16 @@ highpass filter \end{equation} over the logarithmically scaled envelope $\db(t)$. The projections of the local interneurons remain within the metathoracic ganglion and synapse onto a small -number of ascending neurons~(Fig.\,\ref{fig:pathway}b). +number of ascending neurons~(Fig.\,\ref{fig:pathway}b), which marks the +transition between the preprocessing stream and the parallel processing stream +of the model pathway. \subsection{Feature extraction by individual neurons} +The small population of ascending neurons + + + \textbf{Stage-specific processing steps and functional approximations:} Template matching by individual ANs\\