comparison testPrograms/test2toneMovie.m @ 38:c2204b18f4a2 tip

End nov big change
author Ray Meddis <rmeddis@essex.ac.uk>
date Mon, 28 Nov 2011 13:34:28 +0000
parents
children
comparison
equal deleted inserted replaced
37:771a643d5c29 38:c2204b18f4a2
1 % function test2toneMovie
2 %
3 % Demonstration of two-tone suppression in the AN using a
4 % F1 tone suppressed by a 1.5*F1 kHz tone
5 %
6
7 global ANprobRateOutput DRNLoutput
8 dbstop if error
9 restorePath=path;
10 addpath (['..' filesep 'MAP'], ['..' filesep 'wavFileStore'], ...
11 ['..' filesep 'utilities'])
12 figure(5), clf
13
14 disp('')
15 primaryToneFrequency=8000;
16
17 probedBs=10 :10: 50;
18 nProbeLevels=length(probedBs);
19
20 % disp(['F1 F1 level= ' num2str([primaryToneFrequency probedB])])
21
22 suppressorLevels=0:10:80;
23
24 lowestBF=250; highestBF= 8000; numChannels=21;
25 BFlist=round(logspace(log10(lowestBF), log10(highestBF), numChannels));
26 % fix so that probe is middle range and is at a BF
27 BFlist=BFlist*primaryToneFrequency/2000;
28 suppressorFrequencies=BFlist;
29 BFchannel=find(round(BFlist)==round(primaryToneFrequency));
30
31 sampleRate= 100000; % Hz (higher sample rate needed for BF>8000 Hz)
32 dt=1/sampleRate; % seconds
33
34 duration=.050; % seconds
35 tone2Duration=duration/2; % s
36 startSilenceDuration=0.010;
37 startSilence=...
38 zeros(1,startSilenceDuration*sampleRate);
39 suppressorStartsPTR=...
40 round((startSilenceDuration+duration/2)*sampleRate);
41
42 probedBCount=0;
43 for probedB=probedBs
44 probedBCount=probedBCount+1;
45
46 peakResponse= zeros(length(suppressorLevels),length(suppressorFrequencies));
47 suppFreqCount=0;
48 for suppressorFrequency=suppressorFrequencies
49 suppFreqCount=suppFreqCount+1;
50
51 suppressorLevelCount=0;
52 for suppressorDB=suppressorLevels
53 suppressorLevelCount=suppressorLevelCount+1;
54
55 % primary + suppressor
56 primaryLevelDB=probedB;
57 suppressorLevelDB=suppressorDB;
58
59
60 % primary BF tone
61 time1=dt: dt: duration;
62 amp=10^(primaryLevelDB/20)*28e-6;
63 inputSignal=amp*sin(2*pi*primaryToneFrequency*time1);
64 rampDuration=.005; rampTime=dt:dt:rampDuration;
65 ramp=[0.5*(1+cos(2*pi*rampTime/(2*rampDuration)+pi)) ones(1,length(time1)-length(rampTime))];
66 inputSignal=inputSignal.*ramp;
67 inputSignal=inputSignal.*fliplr(ramp);
68
69 % suppressor
70 time2= dt: dt: tone2Duration;
71 % B: tone on
72 amp=10^(suppressorLevelDB/20)*28e-6;
73 inputSignal2=amp*sin(2*pi*suppressorFrequency*time2);
74 rampDuration=.005; rampTime=dt:dt:rampDuration;
75 ramp=[0.5*(1+cos(2*pi*rampTime/(2*rampDuration)+pi)) ones(1,length(time2)-length(rampTime))];
76 inputSignal2=inputSignal2.*ramp;
77 inputSignal2=inputSignal2.*fliplr(ramp);
78 % A: initial silence (delay to suppressor)
79 silence=zeros(1,length(time2));
80 inputSignal2=[silence inputSignal2];
81
82 % add tone and suppressor components
83 inputSignal=inputSignal+inputSignal2;
84
85 inputSignal=...
86 [startSilence inputSignal ];
87
88 % run MAP
89 MAPparamsName='Normal';
90 AN_spikesOrProbability='probability';
91 paramChanges={'IHCpreSynapseParams.tauCa=80e-6;'};
92 MAP1_14(inputSignal, sampleRate, BFlist, ...
93 MAPparamsName, AN_spikesOrProbability, paramChanges);
94
95 response=ANprobRateOutput;
96 peakResponse(suppressorLevelCount,suppFreqCount)=...
97 mean(response(BFchannel,suppressorStartsPTR:end));
98 disp(['F2 level= ', num2str([suppressorFrequency suppressorDB ...
99 peakResponse(suppressorLevelCount,suppFreqCount)])])
100
101
102 %% make movie
103 figure(6), subplot(4,1,2)
104 axis tight
105 set(gca,'nextplot','replacechildren');
106 plot(dt:dt:dt*length(inputSignal), inputSignal, 'k')
107 ylim([-.5 .5])
108
109 figure(6), subplot(2,1,2)
110 PSTHbinWidth=0.010;
111 PSTH= UTIL_PSTHmakerb(...
112 response, dt, PSTHbinWidth);
113 [nY nX]=size(PSTH);
114 time=PSTHbinWidth*(0:nX-1);
115 surf(time, BFlist, PSTH)
116 zlim([0 500]),
117 caxis([0 500])
118 shading interp
119 colormap(jet)
120 set(gca, 'yScale','log')
121 xlim([0 max(time)+dt])
122 ylim([0 max(BFlist)])
123 view([0 90]) % view([-8 68])
124 title([' primary + suppressor '])
125
126 end
127 end
128
129 %% plot matrix
130
131 peakResponse=peakResponse/peakResponse(1,1);
132
133 figure(5), subplot(2,nProbeLevels, probedBCount)
134 surf(suppressorFrequencies,suppressorLevels,peakResponse)
135 shading interp
136 view([0 90])
137 set(gca,'Xscale','log')
138 xlim([min(suppressorFrequencies) max(suppressorFrequencies)])
139 set(gca,'Xtick', [1000 4000],'xticklabel',{'1000', '4000'})
140 title([num2str(primaryToneFrequency) ' Hz'])
141
142 subplot(2,nProbeLevels,nProbeLevels+probedBCount)
143 contourf(suppressorFrequencies,suppressorLevels,peakResponse, ...
144 [.1:.1:.9 0.99] )
145 set(gca,'Xscale','log')
146 set(gca,'Xtick', [1000 4000],'xticklabel',{'1000', '4000'})
147 set(gcf, 'name',['primaryToneFrequency= ' num2str(primaryToneFrequency)])
148 title([num2str(probedB) ' dB'])
149 end
150
151 path=restorePath;