ThresholdFrictionSaccadeController Class Reference

Threshold-limited friction-damped controller. More...

#include <Neuro/SaccadeControllers.H>

Inheritance diagram for ThresholdFrictionSaccadeController:

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Collaboration diagram for ThresholdFrictionSaccadeController:

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List of all members.

Public Member Functions
	ThresholdFrictionSaccadeController (OptionManager &mgr, const SaccadeBodyPart bodypart)
	Constructor.
virtual	~ThresholdFrictionSaccadeController ()
	Destructor.
Protected Member Functions
virtual void	doEvolve (SimEventQueue &q)
	evolve one time step
virtual void	computeWhenNewPercept (SimEventQueue &q)
	This method is called each time a new percept has arrived.
virtual void	computeWhenResetPos (SimEventQueue &q)
	This method is called each time a reset is made.
virtual Point2D< int >	computeWhenNewDecision (SaccadeState &sacstate, bool &blinkstate, SimEventQueue &q)
	This method is called each time a new decision is requested.
Protected Attributes
OModelParam< SimTime >	itsMaxIdle
	max time (in s) before we return to IEP

Detailed Description

Threshold-limited friction-damped controller.

ThresholdFrictionSaccadeController combines the features of ThresholdSaccadeController and FrictionSaccadeController.

The ThresholdSaccadeController determines when a new saccade is warranted. The FrictionSaccadeController is fed with the average covert location over the duration of the percept queue of the Threshold controller. It then is responsible for inducing slow drifts of overt attention towards that average, in between two saccades. In addition, this controller will return to the center of the image if it does not move in some time.

Definition at line 284 of file SaccadeControllers.H.

Constructor & Destructor Documentation

ThresholdFrictionSaccadeController::ThresholdFrictionSaccadeController	(	OptionManager &	mgr,
		const SaccadeBodyPart	bodypart
	)

Constructor.

See the two base classes for parameters.

Parameters:

	maxidle	max time (in seconds) before we naturally return to the center of the image. This will happen if the covert shifts are so chaotic that we never decide to follow them overtly.
	part	As this controller may be used either for the eye or for the head (as part of bigger controllers that include both eye and head), this should be either SaccadeBodyPartEye or SaccadeBodyPartHead and will determine which model options we use for our internal parameters (eye or head)

Definition at line 457 of file SaccadeControllers.C.

References ModelComponent::addSubComponent().

ThresholdFrictionSaccadeController::~ThresholdFrictionSaccadeController ( ) [virtual]

Destructor.

Definition at line 478 of file SaccadeControllers.C.

Member Function Documentation

Point2D< int > ThresholdFrictionSaccadeController::computeWhenNewDecision	(	SaccadeState &	sacstate,
		bool &	blinkstate,
		SimEventQueue &	q
	)			`[protected, virtual]`