indii/fmri/experimental/BlockDesignModel.hpp

#ifndef INDII_FMRI_EXPERIMENTAL_BLOCKDESIGNMODEL_HPP
#define INDII_FMRI_EXPERIMENTAL_BLOCKDESIGNMODEL_HPP

#include "indii/ml/ode/FunctionModel.hpp"

namespace indii {
  namespace fmri {
    namespace experimental {

/**
 * Block design %experimental stimulus.
 *
 * @author Lawrence Murray <lawrence@indii.org>
 * @version $Rev: 285 $
 * @date $Date: 2007-07-20 17:25:40 +0100 (Fri, 20 Jul 2007) $
 *
 * Represents a box-car function, consisting of alternating fixed
 * length, fixed intensity blocks of rest and activity.
 */
class BlockDesignModel : public indii::ml::ode::FunctionModel {
public:
  /**
   * Construct new block design.
   *
   * @param blockLength Time length of a single block.
   * @param isFirstRest Is the first block a rest block?
   * @param restLevel Stimulus level during rest block.
   * @param activityLevel Stimulus level during activity block.
   */
  BlockDesignModel(const double blockLength, const bool isFirstRest = true,
      const double restLevel = 0.0, const double activityLevel = 1.0);

  /**
   * Destructor.
   */
  ~BlockDesignModel();

  /**
   * @see indii::ml::ode::FunctionModel
   */
  double evaluate(const double t, const double y[]);

private:
  /**
   * Time length of a single block.
   */
  const double blockLength;

  /**
   * Is the first block a rest block?
   */
  const bool isFirstRest;

  /**
   * Stimulus level during rest block.
   */
  const double restLevel;

  /**
   * Stimulus level during activity block.
   */
  const double activityLevel;

};

    }
  }
}

#endif

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