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1 function testLibermanMOC_DPOAE
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2
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3 % compares MOC response to LIberman's 1996 data for DPOAE reduction with
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4 % contralateral tone stimulation.
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5 % This program is used mainly as a check on the time constants involved.
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6 %
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7 % NB very different time constants are required for 'spikes' and
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8 % 'probability'
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9
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10 % global dt ANdt savedBFlist saveAN_spikesOrProbability saveMAPparamsName...
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11 % savedInputSignal OMEextEarPressure TMoutput OMEoutput ARattenuation ...
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12 % DRNLoutput IHC_cilia_output IHCrestingCiliaCond IHCrestingV...
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13 % IHCoutput ANprobRateOutput ANoutput savePavailable ANtauCas ...
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14 % CNtauGk CNoutput ICoutput ICmembraneOutput ICfiberTypeRates ...
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15 % MOCattenuation
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16 global dt dtSpikes saveAN_spikesOrProbability ANprobRateOutput ICoutput
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17
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18 global DRNLParams
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19
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20 LibermanData=[
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21 2 0.2;
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22 2.1 0.19;2.2 0.18;2.3 0.18;2.4 0.16;2.5 0.15;2.6 0.15;2.7 0.15;
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23 2.8 0.12;2.9 0.12;3 0.1;3.1 0.1;3.2 0.05;3.3 0.05;3.4 0;3.5 -0.1;
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24 3.6 -0.4;3.7 -1.2;3.8 -1.6;3.9 -1.8;4 -1.85;4.1 -2;4.2 -2.05;
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25 4.3 -2.05;4.4 -2.15;4.5 -2.2;4.6 -2.15;4.7 -2.1;4.8 -2.15;4.9 -2.2;
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26 5 -2.1;5.1 -2.1;5.2 -2.25;5.3 -2.1;5.4 -2.15;5.5 -2.1;5.6 -2.15;
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27 5.7 -2.1;5.8 -2.2;5.9 -2.05;6 -2.15;6.1 -2.05;6.2 -2;6.3 -2.2;6.4 -2.1;
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28 6.5 -2.05;6.6 -2.05;6.7 -2.05;6.8 -2.2;6.9 -2.1;7 -2.05;7.1 -2.05;7.2 -0.7;
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29 7.3 -0.1;7.4 0;7.5 0.1;7.6 0.2;7.7 0.35;7.8 0.2;7.9 0.15;8 0.2;8.1 0.15;8.2 0.15;
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30 8.3 0.15;8.4 0.12;8.5 0.1;8.6 0.09;8.7 0.08;8.8 0.07;8.9 0.06;9 0.05;
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31 ];
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32
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33 % Backus2006Data: time bilateral contralateral ipsilateral
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34 % all % max microPascals
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35 Backus2006Data=[
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36 100 20 15 10;
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37 200 36 24 14;
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38 300 44 30 18;
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39 400 46 32 20;
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40 500 48 34 22;
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41 1000 50 36 24;
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42 1500 52 37 25;
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43 2000 54 38 27
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44 ];
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45
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46 steadyMinimum=mean(LibermanData(LibermanData(:,1)>4 & LibermanData(:,1)<7,2));
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47
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48 restorePath=path;
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49 addpath (['..' filesep 'MAP'], ['..' filesep 'wavFileStore'], ...
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50 ['..' filesep 'utilities'])
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51
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52 %% #1 parameter file name
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53 MAPparamsName='Normal';
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54
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55
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56 %% #2 probability (fast) or spikes (slow) representation
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57 AN_spikesOrProbability='spikes';
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58 % or
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59 AN_spikesOrProbability='probability';
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60
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61
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62 %% #3 pure tone, harmonic sequence or speech file input
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63 signalType= 'tones';
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64 sampleRate= 50000;
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65 rampDuration=.005; % raised cosine ramp (seconds)
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66 toneFrequency= 1000; % or a pure tone (Hz)
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67 duration=3.6; % Lieberman test
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68 beginSilence=1; % 1 for Lieberman
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69 endSilence=1; % 1 for Lieberman
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70
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71 %% #4 rms level
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72 % signal details
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73 leveldBSPL= 80; % dB SPL (80 for Lieberman)
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74
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75
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76 %% #5 number of channels in the model
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77
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78 numChannels=1;
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79 BFlist=toneFrequency;
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80
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81
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82 %% #6 change model parameters
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83 paramChanges={};
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84
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85 %% delare 'showMap' options to control graphical output
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86 showMapOptions.printModelParameters=1; % prints all parameters
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87 showMapOptions.showModelOutput=1; % plot of all stages
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88 showMapOptions.printFiringRates=1; % prints stage activity levels
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89 showMapOptions.showACF=0; % shows SACF (probability only)
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90 showMapOptions.showEfferent=1; % tracks of AR and MOC
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91 showMapOptions.surfAN=1; % 2D plot of HSR response
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92 showMapOptions.surfSpikes=0; % 2D plot of spikes histogram
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93 showMapOptions.ICrates=0; % IC rates by CNtauGk
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94
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95 %% Generate stimuli
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96
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97 % Create pure tone stimulus
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98 dt=1/sampleRate; % seconds
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99 time=dt: dt: duration;
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100 inputSignal=sum(sin(2*pi*toneFrequency'*time), 1);
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101 amp=10^(leveldBSPL/20)*28e-6; % converts to Pascals (peak)
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102 inputSignal=amp*inputSignal;
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103 % apply ramps
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104 % catch rampTime error
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105 if rampDuration>0.5*duration, rampDuration=duration/2; end
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106 rampTime=dt:dt:rampDuration;
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107 ramp=[0.5*(1+cos(2*pi*rampTime/(2*rampDuration)+pi)) ...
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108 ones(1,length(time)-length(rampTime))];
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109 inputSignal=inputSignal.*ramp;
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110 ramp=fliplr(ramp);
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111 inputSignal=inputSignal.*ramp;
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112 % add silence
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113 intialSilence= zeros(1,round(beginSilence/dt));
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114 finalSilence= zeros(1,round(endSilence/dt));
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115 inputSignal= [intialSilence inputSignal finalSilence];
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116
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117 %% run the model
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118 tic
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119 fprintf('\n')
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120 disp(['Signal duration= ' num2str(length(inputSignal)/sampleRate)])
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121 disp([num2str(numChannels) ' channel model: ' AN_spikesOrProbability])
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122 disp('Computing ...')
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123
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124 MAP1_14(inputSignal, sampleRate, BFlist, ...
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125 MAPparamsName, AN_spikesOrProbability, paramChanges);
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126
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127
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128 %% the model run is now complete. Now display the results
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129 UTIL_showMAP(showMapOptions)
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130
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131 if strcmp(signalType,'tones')
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132 disp(['duration=' num2str(duration)])
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133 disp(['level=' num2str(leveldBSPL)])
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134 disp(['toneFrequency=' num2str(toneFrequency)])
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135 disp(['attenuation factor =' ...
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136 num2str(DRNLParams.rateToAttenuationFactor, '%5.3f') ])
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137 disp(['attenuation factor (probability)=' ...
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138 num2str(DRNLParams.rateToAttenuationFactorProb, '%5.3f') ])
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139 disp(AN_spikesOrProbability)
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140 end
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141 disp(paramChanges)
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142
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143
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144
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145 %% superimpose Lieberman (1996) data
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146
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147 global MOCattenuation
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148 MOCdB=20*log10(MOCattenuation);
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149 MOCtime=dt:dt:dt*length(MOCdB);
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150
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151 % scale up DPOAE results to the running maximum MOC dB
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152 steadyMOCminimum=mean(MOCdB(MOCtime>2 & MOCtime<4.5));
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153 scalar=steadyMOCminimum/steadyMinimum;
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154
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155 figure(90), clf
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156 plot(MOCtime,MOCdB), hold on
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157 plot(LibermanData(:,1)-2.5,scalar*LibermanData(:,2),'r:','linewidth',4)
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158 legend({'MAP', 'DPOAE'},'location', 'east')
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159 title('Compare Liberman (1996) DPOAE data with MAP MOC')
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160 xlabel('time (s)'), ylabel('MOC attenuation/ DPOAE reduction')
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161 if strcmp(saveAN_spikesOrProbability,'probability')
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162 text(0,2,['MOCtau= ' num2str(DRNLParams.MOCtauProb)])
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163 else
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164 text(0,2,['MOCtau= ' num2str(DRNLParams.MOCtau)])
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165 end
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166 set(gcf, 'name', 'Liberman compare')
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167
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168 PSTHbinwidth=0.001;
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169
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170 % show the source of the MOC activity
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171 figure(89)
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172 if strcmp(saveAN_spikesOrProbability,'probability')
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173 % brainstem activity
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174 PSTH=UTIL_PSTHmaker...
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175 (ANprobRateOutput(2,:), dt, PSTHbinwidth)*dt/PSTHbinwidth;
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176 else
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177 % AN probability
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178 PSTH=UTIL_PSTHmaker(ICoutput(2,:), dtSpikes, PSTHbinwidth)*dt/PSTHbinwidth;
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179 end
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180
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181 time=PSTHbinwidth:PSTHbinwidth:PSTHbinwidth*length(PSTH);
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182 plot(time, PSTH)
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183 set(gcf,'name', 'Lieberman')
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184 title(saveAN_spikesOrProbability)
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185
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186 toc
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187 path(restorePath)
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188
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189 % figure(88), plot(MOCattenuation)
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