Selectivity of spikes and local field potential recordings in macaque inferior temporal cortex
 
Supplementary Material 
 
A.I. Memo No. 2004-020
 
C.B.C.L. Paper No. CBCL-240
 
Gabriel Kreiman*, Chou Hung*, Alexander Kraskov, Rodrigo Quiroga, Tommy Poggio, Jim DiCarlo
 
Center for Biological and Computational Learning
 
Department of Brain and Cognitive Sciences
 
Computation and Systems Biology Initiative
 
McGovern Institute for Brain Research
 
Massachusetts Institute of Technology
 
*These two authors contributed equally to this work    
 
         
 
Downloads    
 
Current version of manuscript   (PDF) (DOC)  
Current version of SFN poster (PDF) (AI)  
Talks (Conte meeting 08-31-2004, McGovern Retreat 09-13-2004)  (PDF) (PPT)  
AI memo 2004-020 (PDF) (DOC)  
Link to current version of paper figures   (PDF) (AI)  
         
 
Methods    
 
Results    
 
    SUA (single-unit activity) MUA (multi-unit activity) LFP (local field potentials)
1 Preprocessing preprocessing of SUA preprocessing of MUA preprocessing of LFP
2 Short-term stationarity short term stationarity SUA short term stationarity MUA short term stationarity LFP
3 Correlation between signal changes   correlation between change in MUA and LFP signals with time
4 Response plots 1   raster plots LFP raw responses
5 Response plots 2   raster plots + LFP raw responses LFP responses below 40 Hz
6 Analysis interval   proportion of selective sites vs. analysis time proportion of selective sites vs. analysis time
7 200 ms stimulus presentation   200 ms on
8 Selectivity SUA selectivity MUA selectivity LFP selectivity
9 Summary selectivity   summary selectivity
10 Comparison of selectivity of spikes and LFPs 1 selectivity comparison: SUA vs LFP selectivity comparison: MUA vs LFP  
11 Comparison of selectivity of spikes and LFPs 2 overlap in top 10 responses: SUA vs LFP overlap in top 10 responses: MUA vs LFP  
12 Comparison of selectivity of spikes and LFPs 3 SUA vs LFP for different frequency bands MUA vs LFP for different frequency bands  
13 Correlation between spikes and LFPs 1 Correlation between SUA and LFP Correlation between MUA and LFP  
14 Correlation between spikes and LFPs 2 Correlation between SUA and LFP (selective sites) Correlation between MUA and LFP (selective sites)  
15 Comparison of selectivity of SUA and MUA Correlation between SUA and MUA responses    
16 Correlation between sites correlation in spike count between sites correlation in spike count between sites correlation in LFP signal between sites
17 Correlation between sites vs distance correlation in spike counts vs distance between sites correlation in spike counts vs distance between sites correlation in LFP signal vs distance between sites
18 Correlation between sites vs distance between sites for specific groups   correlation in spike counts vs distance between sites for specific groups of pictures correlation in LFP signal vs distance between sites for specific groups of pictures
19 Analysis excluding blank image and white boxes   data analysis exlucindg blank image and white boxes
20 Latencies   MUA response latencies LFP response latencies
21 Responses for all sites within a penetration   MUA responses for sites within a penetration LFP responses for sites within a penetration
22 Firing rate and comparison of spikes and LFPs   Correlation between firing rate and covariation of LFP and MUA
22 Correlation with basic image properties   Correlation between neural responses and basic image properties
23 Pseudolayers 1   threshold = 500 um
24 Pseudolayers 2   threshold = 750 um
25 Pseudolayers 3   threshold = 1000 um
26 Pseudolayers 3   LFP responses and principal components
27 LFP power spectrum none none LFP power versus frequency band
28 Within group selectivity 1 Within group selectivity (SUA) Within group selectivity (MUA) Within group selectivity (LFP)
29 Within group selectivity 2 Summary Summary Summary
30 Model: LFP versus average spiking response   Comparison of LFP signal versus average MUA around the electrode
31 Monkeys, hemispheres, etc.   Comparison between monkeys and between hemispheres
32 Sharpness of responses   Sharpness of MUA responses versus sharpness of LFP responses
33 Scale and position invariance for LFPs  
         
 
gk, last updated: 10-May-05  
 
kreiman@mit.edu    
 
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