function pooltwspksq = getTimewinsPoolSpikeSeqs(poolstackvars,poolstackspks)

if nargin<2
    subjsData(1).sbdata=getSubjectData(1);
    subjsData(2).sbdata=getSubjectData(2);
    poolstackspks=getPoolStackSpks(subjsData);
    if nargin<1
        poolstackvars=getPoolStackVars(subjsData);
    end
end

Nsns=size(poolstackspks,1);
Ntws=size(poolstackspks,2);
Ncells=arrayfun(@(sn) poolstackvars(sn).ncells, 1:Nsns);
Ntrs=arrayfun(@(sn) size(poolstackvars(sn).offer1sd,1),1:Nsns);
Ntps=arrayfun(@(tw) max(arrayfun(@(sn) size(poolstackspks(sn,tw).spksq,3), 1:8)),1:8);
Ntrs12=max(Ntrs);

pooltwspksq(1:8)=struct();

for tw=1:Ntws
    currcatspkseqs=[];
    for sn=1:Nsns
        currNtps=size(poolstackspks(sn,tw).spksq,3);
        currcatspkseqs=cat(2, currcatspkseqs, ...
            cat(1, cat(3,poolstackspks(sn,tw).spksq,nan(Ntrs(sn),Ncells(sn),Ntps(tw)-currNtps)), nan(Ntrs12-Ntrs(sn),Ncells(sn),Ntps(tw))));
    end
    pooltwspksq(tw).spkseqs=currcatspkseqs;
    tempspks=permute(currcatspkseqs,[3 1 2]);
    pooltwspksq(tw).covhist=sum(~isnan(tempspks(:,:)),2)./sum(Ncells.*Ntrs);
end

end