The magnocellular pathway receives information from M ganglion cells about peripheral vision and therefore _______ spatial...

The magnocellular pathway receives information from M ganglion cells about peripheral vision and therefore _______ spatial resolution images from the retina.

		High
		Low

The _________ is responsible for controlling the diameter of the pupil.

		Pupilloconstrictor zone
		Pupilloexpander zone
		Pupillolengthening zone
		Pupillomaximizing zone

A person’s _______ threshold is measured by taking the smallest amount of a stimulus and gradually increasing its strength until a person correctly guesses the stimulus’s presence 50% of the time.

		Minimum
		Difference
		Absolute
		Tolerance

A higher frequency means more pressure changes occur in a given second and occur closer to each other in space thus producing a _________ wavelength.

		Shorter
		Longer

Solutions

Expert Solution

Answer )The magnocellular pathway receives information from M ganglion cells about peripheral vision and therefore __Low _____ spatial resolution images from the retina

The visual pathway is now being considered to be made of two lanes: one made of the large cells is called magnocellular pathway and the other of small cells is called parvocellular pathway.

Differences between two are

	Magnocellular	Parvocellular
Colour contrast	No	yes
Luminar contrast	Higher	Lower
Spatial frequency	Lower	Higher
Temporal frequency	Higher	Lower

Answer )The __Pupilloconstrictor zone_______ is responsible for controlling the diameter of the pupil.

Pupils contains Sphincter pupillae and when Parasympathetic system is activated it result in constriction of Pupil by acting on Sphincter pupillae through alpha 1 receptor .

Answer )A person’s __Absolute _____ threshold is measured by taking the smallest amount of a stimulus and gradually increasing its strength until a person correctly guesses the stimulus’s presence 50% of the time.

It is defined as the degree of intensity of a stimulus necessary to correctly detect that stimulus mostly 50% of the time..

Answer )A higher frequency means more pressure changes occur in a given second and occur closer to each other in space thus producing a __Shorter _______ wavelength.

Frequency is inversely related to wavelength so higher frequency have shorter wavelenth and vice versa .

Basic Funda--->If the wavelength of a light wave is shorter, that means that the frequency will be higher because one cycle will take shorter amount of time to complete the cycle .

Sydney Mullin answered 9 months ago

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