PSİKOLOJİ

Perception occurs when the electric signals of an object's representation reach the brain in a transformed form.

Absolute threshold is explained as the energy level at which the lowest level stimulus is noticed or discerned by the human senses, including vision, hearing, taste, smell and touch.

The visual system consists of structures including the eye, optic nerve, and visual cortex.

The blind spot is the area on the retina lacking receptors that respond to light.

Distance perception is the act of knowing or recognizing a distance by previous experiences or recollective thought.

According to the law of closure, our brains sometimes fill in gaps in order to create a meaningful image.

The middle ear contains three bones: anvil, stirrup and hammer.

Basal cell is a component of taste bud. (See Figure 4.16 in page 85)

Stimulus exists both in the environment, and within our body. Stimulus in the environment has two aspects: environmental stimulus and attended stimulus.

Even though perception seems to occur instantly, it involves complex mechanisms. How physical stimuli are translated into psychological experiences, is measured by thresholds.

The main principle of perception is based on electrical signals that are created in the receptors in our nervous system. Transduction is the transformation of one form of energy into another form of energy.

The trichromatic theory is based on the idea that the light of a particular wave length stimulates the three different receptor mechanisms, each with different spectral sensitivities (also called Young – Helmhotz theory of color vision). These three colors are red, green, and blue. Each of these color-sensitive cone cells has different degrees of sensitivity, with blue cones being the most sensitive and red cones being the least. This activity pattern results in the perception of color.

Oculomotor cues are based on our ability to sense the position of our eyes and the tension in our eye muscles.

Relative size: When two objects are of equal size, the one that is farther away will take up less of your field view than the one that is closer

Texture Gradient: Elements that are equally spaced in a scene appear to be more closely packed as distance increases.

According to the gate-control theory of pain, pain signals travel from body to the brain through a gate in the spinal cord. Gate refers to the pattern of neural activity which functions as a gate. This activity either stops pain signals or allows them to pass.

The taste sensation has the following categories: sweetness, sourness, saltiness and bitterness.

Elements that are within the same region of space appear to be grouped together, and this phenomenon is called principle of common region

The main principle of perception is based on electrical signals that are created in the receptors in our nervous system. Transduction is the transformation of one form of energy into another form of energy.

Perception occurs when the electiric signals of the leaf-shaped bug representation reach the brain in a transformed form. Realization of the leafshaped bug (not leaf) is called recognition; walking towards it to see it clearly is an action. Recognition and action are the outcomes of theperceptual process.