The perception of smell, or olfaction, is the process of perceiving smell. Sense of smell occurs when an odor binds to a receptor within the nose, transmitting a signal to the olfactory system. The sense of smell has been deemed important to survival efforts. The loss of a sense of smell can result from some injuries or illnesses. The loss of smell has been gaining traction as an early indicator for some neurodegenrative diseases in research, and has been identified as an early symptom of COVID-19. 

Smell

Touch is the result of the complex somatosensory system of sensory neurons and neural pathways. The general umbrella term for touch is the somatic senses, or somesthetic senses. The perception of touch through movement is known as proprioception, while the perception of touch through objects is known as haptics. Haptic perception is achieved through touching objects or surfaces. 


Touch

The sense of taste is perception of flavor. The perception of taste occurs when a substance within the mouth reacts chemically with taste receptor cells located on taste buds in the oral cavity, primarily on the tongue. 

Taste

Multi-modal perception refers to the ability of the nervous system to combine all different inputs from the various senses to create enhanced detection or identification of a particular stimulus. An example of multi-modal perception is lipreading. 

Multi-Modal

The perception of sound is called hearing, or auditory perception. The perception of sound happens through the perception of noise through vibrations, changes in pressure within the surrounding medium, through the ear (in humans). 

Hearing (auditory perception)

An unpleasant sensory experience that comes from harmful, intense, and/or damaging stimuli. 

Pain

Social perception is the act of identifying and utilizing social cues to assess social rules, social roles, relationships, context, and the characteristics of others. Social perception is the study how and why people form impressions and make inferences about other people. Social perception also refers to how people learn about other's feelings or emotions through what they gather from aspects such as physical appearance, communication, facial expressions, tone, and hand gestures. The 4 main components of social perception are observation, attribution, integration, and confirmation. 

Social perception

Sensory adaptation is becoming continuously exposed to a stimulus to the point of not perceiving that stimulus anymore.

Sensory Adaptation

Signal detection theory provides a framework for understanding how motivation, expectations, and other factors influence our ability to detect a meaningful stimulus against background noise. It is one of the primary theories used to explain why certain sensations lead to conscious perception while others do not.

Signal Detection Theory

Vision, also known as visual perception, is the ability to interpret the surrounding environment by constructing a mental representation of the world from light reflected by objects. The physiological components that enable this process are collectively called the visual system. In humans, vision is a particularly well-developed sense.

Vision (Visual Perception)

- Vision 
- Hearing 
- Touch 
- Taste
- Smell
- Pain
- Social 
- Multi-modal
- Sensory Adaptation

Pace University

University of Michigan - Ann Arbor

University of Texas at San Antonio

New Mexico Highlands University

Perception is the complex psychological process of organizing, interpreting, and consciously experiencing sensory information. It involves making sense of the raw data detected by sensory receptors, actively shaping our conscious experience based on focused attention, past experiences, and cultural background.

Perception

Wikipedia

- Reaction time
- Levels of analysis
- Principle of Neural Representation
- Processing in perception
- Bayesian Inference
- Mental imagery

Focuses of Research on Perception

Types of Perception

In Buddhism, perception is the process of identifying what the individual experiences by associating historically learned patterns with what is happening.

The Five Aggregates of Clinging: Perception

The body transfer illusion refers to the deceptive sense of ownership over a body that does not belong to oneself. This occurs when bottom-up visual cues override top-down knowledge about body ownership, leading to a false perception of possessing a different body.

Body Transfer Illusion 

Inattentional blindness is when people do not notice certain stimuli in their environment because their attention is elsewhere.

Inattentional Blindness

Perception is an active interpretation of sensory data that is significantly affected by a variety of personal and social factors. An individual's beliefs, values, prejudices, cultural background, and unique life experiences all interact to shape how they consciously perceive the world around them.

Factors Influencing Perception

Perception operates through two fundamental processing modes. Bottom-up processing is initiated by sensory information from an environmental stimulus, while top-down processing is guided by an individual's pre-existing knowledge and expectations.

Processing Modes in Perception

The discrepancy between what sensory receptors detect (sensation) and what is consciously experienced (perception) can be explained by several psychological mechanisms. Concepts such as sensory adaptation, selective attention, and signal detection theory help explain why certain sensory stimuli are perceived while others are not.

Factors Explaining Gaps Between Sensation and Perception

Human perception is not an objective recording of reality; it is a subjective process susceptible to error. Perceptual interpretations can be significantly shaped by an individual's pre-existing biases, prejudices, and other personal factors, demonstrating that what we perceive is not always an accurate reflection of the sensory world.

Fallibility and Bias in Perception

A person who is very afraid of spiders sees a small, dark piece of lint on their bed and momentarily perceives it as a spider, causing a brief panic. Which psychological principle best explains why the piece of lint was interpreted in this way?

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