Lectures & Articles Flashcards
Which steps are part of the Information Simplistic Common model of human cognition?
Stimulus - Attention - Perception - Thought processes - Decision Response or action
What are the major functions of attention?
- Alertness (e.g. loud sounds)
- Selection: Orienting resources to task relevant information (e.g. location, color) because there is limited capacity for processing
Attention control, what does it contain?
- Bottom-up attention control (fast detection): Physical salience attracts attention
- Top-down attentional control (slow detection): Goals determine what you attend to
- Relevance history: Attent to what worked for you in the past, what has been relevant for you in the past. (e.g. recognize someones voice)
From sensation to perception, what do you need?
- Absolute threshold= The minimum magnitude of a stimulus that can be discriminated from no stimulus at all.
- Difference threshold = detecting changes in intensity
- If you want to elicit the sense of “difference” you need to know the just noticeable difference.
What is sensation?
- Conversation of physical energy into neural codes recognized by the brain.
- Sensation is the initial step of gathering stimulus information
- Sensory modalities/senses (vision, hearing, taste, smell, tactility)
What is perception?
- Process beyond sensation, making sense of sensation
- Processing + organizing raw information
- Forming a coherent representation of the world
- Using these representations to solve problems in the real world (navigating, planning)
What does “Perceptual decision making” contain?
- The sensory/perceptual system has to detect signals in the presence of sensory noise. (signal detection theory figure)
What are influencing factors of perceptual decision making?
- Sensitivity: The ability to detect a signal
- Bias: The tendency to confirm detection (expectation)
What are the five functions of perception (any modality)?
- Attention -> It decides which incoming information is to be further processed and which is to be ignored
- Localization -> It determines where the objects are
- Recognition -> It identifies objects and puts them into categories
- Abstraction of features -> Extracting critical features of an object
- Perceptual Constancies -> It recognizes objects as being the same under very different circumstances
What do the WCAG 2.0 (=Web content Accessibility Guidelines) contain?
- Perceptible (The information must be evident to the senses of any user)
- Operable (Navigation components and user interface must be able to be realized)
- Understandable (Information and interface management must be intelligible)
- Robust (Content must be able to be interpreted by user applications, including assistive technologies)
Internet is particularly suitable for people with Down syndrome for a number of reasons that help with each symptom, what are these?:
- Motor Deficit -> Internet provides fun and enjoyment, very motivating for the movement
- Phonological and auditory deficit -> web makes people with Down syndrome able to communicate in multiple ways, allowing for non-verbal + non-written responding
- Visual deficit -> Technology adapts to people with visual problems. It allows pupil to be in control and move at own pace
- Neurological deficit -> Adolescents with Down syndrome dedicate almost two hours or more of their free time to activities that do not require social skills (surfing the internet)
What were conclusions from the study of Alonso-Virgos et al (2018)?
- People with Down syndrome may have trouble understanding the meaning of icons
- People with Down syndrome may have motor difficulties with the use of the mouse (include keyboard shortcuts)
- People with Down syndrome may have trouble understanding a complex text.
- Abbreviated words are a barrier to understanding for people with Down syndrom, because they demand a high level of abstract reasoning
- People with Down syndrome can have linguistic and memory limitations
- The use of a visible narrator in the videos was a notable help for improving the understanding of the video
- Audio files should be played at 20db and if we try to avoid the background noise
- The user of timers or chronometers during the application is not recommended for down syndrom people
- Use a monochrome background color coul improve the attention of the user, and it does not harm the readability of the text.
What is multisensory integration?
- The consolidation of information from simultaneously experienced unisensory modalities into a single multisensory perception
What are the benefits of multisensory processing?
- Faster responses
- Better categorization
- Better memory retention
What are the Multisensory guidelines?
- Spatial contiguity (space)
- Temporal contiguity (time)
(Two signals should happen at the same time and come from the same location) - Semantic congruency: Two signals should share identity (dog should bark, not make cat noise)
- Cross-modal correspondence: Systematic associations between basic stimuli (e.g. bouba - kiki-> bouba sounds more like a circle, kiki sounds more recttangular, bitter and black, red and sweet)
What is the cognitive load theory?
Instructional (design) theory based on our knowledge of human cognition
What are the different types of sensations?
- Sight (Ligt waves -> Color, pattern, texture)
- Hearing (Sound waves -> Noises, tones)
- Skin sensation (External contact -> Warmth, pain, touch)
- Smell (Volatile substances -> Odors)
- Taste (Soluble substances -> Flavors (bitter, sweet)
- Kinesthesis (Body movements -> position of body parts)
- Vestibular sense (Mechanical & Gravitational forces -> Spatial movements & Gravitiy pull)
What are the types of perception?
- Bottom-up perception: What attentional systems have led through
- Top-down perception: Role of pre-existing knowledge and ongoing thought, context effect
Perception is not a passive process, it involves active use of pre-existing knowledge to provide meaning
What are the assumptions about the working of the mind in multimedia learning?
- Dual channel: Humans possess seperate information processing channels for verbal & visual sensories
- Limited capacity: There is a limited amount of processing capacity available in the channels
- Active processing: Learning requires substantial cognitive processing in the channels
What are the types of cognitive load?
- Intrinsic load (Information imposes a heavy cognitive load because it’s intrinsic complexity (1+5 vs 6+12 *6) -> can be changed by adjusting what is learned or adjusting the knowledge level of learners.
- Extraneous load (Information imposes a heavy cognitive load because of the way it’s presentated -> can be adjusted by instructional design)
- Germane load (processing, construction, and automation of schemas)
All types of cognitive load are related to required elements of interactivity in working memory
What are the types of cognitive load?
- Intrinsic load (Information imposes a heavy cognitive load because it’s intrinsic complexity (1+5 vs 6+12 *6) -> can be adjusted what is learned or adjusting the knowledge level of learners.
- Extraneous load (Information imposes a heavy cognitive load because of the way it’s presentated -> can be adjusted by instructional design)
- Germane load (processing, constructi9on, and automation of schemas)
All types of cognitive load are related to required elements of interactivity in working memory
What are the types of processing?
- Essential processing: aimed at making sense of the presented material, including selecting,organizing, and integrating of words and images.
- Incidental processing: Aimed at nonessential aspects of the presented material
- Representational holding: Aimed at holding a verbal or visual representation in working memory
What are off-loading methods from when the visual channel is overloaded with essential processing?
- Offloading: Move essential processing from the visual channel to auditory channel
Research effect:
- Modality effect: Better transfer when words are presented as narration rather than on-screen text.
What are methods for load reduction when the essential processing cover both channels?
- Sementing: Allow time between bite-size elements
- Pre-training: Provide pre-training in names and characteristics of the system.
Research effect:
- Segmentation effect: Better transfer when lesson is presented in learner-controller segmants, rather than continuous units.
- Pre-training effect: Better transfer when students know names and behaviors of system components.
What are methods for offloading when one or both channels are overloaded by essential and incidental processing (attributable to to extraneous materials)?
- Weeding: Eliminate interesting but extraneous material to reduce processing
- Signaling: Provide ques for how to process the materials.
Research effect:
- Coherence effect: Better transfer when extreanous material is reduced
- Signaling effect: Better transfer when signals are included
Essential + incidental processing (caused by confusing presentation) one or both channels are overloaded, what are the reducing methods?
- Aligning: Place printed words near corresponding parts of the graphics to reduce visual scanning.
- Eliminating redundancy: Avoid presenting identical streams of printed & spoken words
Research effect:
- Spatial contiguity effect: Better transfer when printed words are placed near corresponding grpahics
- Redundancy effect: Better transfer when words are presented as narration, rather than narration an on-screen text.
What does mulsemedia mean?
Multiple sensorial media
What were the multimedia themes investigated?
- Multimedia system/application has at least two media objects that are correlated.
- Multiple media objects should be used jointly and separately to improve applications’ performance and dynamic content needs to be delivered transparently, to adapt to the users’environment
- Multimedia applications are multimodal & interactive
What are the different types of sensing?
- Bottom-up sensing: capture, interpretation of info from numerous sensory organs (sensory processing)
- Top-down thinking: Multiple senses are cognitively joined + aligned, and then compared to high-order cognitive schema’s (task semantics*social norms) (cognitive reasoning)
The five senses of mulsemedia systems are:
- Visual: Assimilation of textual & visual information
- Auditory: Transfer of sound, speech, music & special effects
- Tactile/ haptic: Identification of different types of sensations
- Gastronomy (4. taste & 5. Smell): Gatekeeping senses (results of interaction)
What does “binding” mean?
Integration and aligment of sensory fragments by segregating and combining processes.
What does the Uses and gratifications theory mean?
What do people do with media? How do people select a certain medium?
- Goal-oriented / intentional use of media -> goal is to satisfy an (innated) need.
- The same need can be fulfilled in multiple different ways that are competing against each other.
- This is a conscious process -> users are aware of their needs
the types of needs/ motivations are:
- Cognitive needs (need for knowledge, information)
- Affective needs (mood management, recreation, entertainment)
- Social-interaction needs (social contact, parasocial relationships)
what is motivation?
- A codition that enegizes behavior and gives direction
- Operates like an internal force
- Experienced as a conscious desire, but can remain subconscious
- Often controllable by a conscious choice
- Influenced by multiple factors both internal and external
Motivation refers to all the processes involved in:
(a) sensing a need or desire
(b) Activating and guiding the organism by slecting, directing, sustaining the mental and physical activity aimed at meeting the need or desire
(c) Reducing the sensation of need
What does the instinct theory behold (William James) ?
- Certain behaviors are completely determined by innate biological factors
- Instincts is a term used in ethology in the sense of fixed action patterns of species
- Imprinting
What does the Drive theory (Hull and Spence) behold?
- People are driven by biological drives or needs -> Goal is drive reduction
- Homeostasis: Organisms seek balanced condition in the body (maintaining a set point)
- Similar to a thermostat/air conditioner
What is the Psychodynamic theory (Sigmund Freud)?
- Motivation arises from unconscious desired
- Developmental changes in these uurges appear as we mature
- Sex and agression
Maslows hierarchy of needs, what are the steps?
- Physiological needs (food,water, warmth, rest)
- Safety needs (security, safety)
- Belonginess and love needs (intimate relationships, fiends)
- Esteem (prestige and feeling of accomplishment)
- Self-actuallization (achieving one’s potentional, including creative activities)
They are divided over: basic needs, psychological needs, self-fullfilment needs
An individuals motivational hierarchy is not rigid, but can be influenced by proximal stimuli and by the person’s developmental level.
What is the evolutionary perspective on maslow’s hierarchy of needs?
- The most basic motives being related to survival, followed by motives related to reproduction and to survival of oggspring
What are incentive motivations and rewards?
There are two types of incentives:
- Primary: Powerful motivators by themselvels (sweet taste)
- Secondary: Established through learning
- Natural rewards: activate the brain’s dopamine system (reward system)
What are two types of motivation?
Intrinsic motivation: The desire to engage in an activity for one’s own sake, rather than for an external consequence. The activity itself is a reward (passion, creativity)
Extrinsic motivation: The desire to engage in an activity to achieve/ avoid an external consequence, such as a reward/ punishment
How can the type of motivation change?
- Overjustification: Occurs when a reward is given without regard for quality of performance (intrinsic -> extrinsic)
- Internalization of an extrinsic motivation: Extrinsic motivation is taken in, and intergrated into the value system (extrinsic -> instrinsic)
What is the self-determination theory (Ryan & Deci, 2000)?
Theory of human motivation, that consists of 3 intrinsic human needs:
- Need for autonomy (agency,control)
- Need for competence (challenge, and feelings of mastery)
- Need for relatedness (mainting close and meaningful relationships)
Psychological well-being is dependent on the satisfaction of these 3 needs.
What are the hedonic vs eudaimonic needs?
Hedonic motivation:
- The need for arousal, excitement, fun, positive valence
Eudaimonic motivation:
- The need for meaningfulness, personal growth, sense of purpose of life, being moved, feelings of elevation ,artistic value.
- Explains the entertainment value of negative valence
According to Sundar & Limperos, what is the defenition of gratification?
The pleasurable emotional reaction of happiness in response to a fulfillment of a desire or a goal
What are two problems with the measurements of artifacts identified by the article of Sundar & Limperos?
- Measures designed for older media can be used to capture gratifications from newer media
- Gratifications are conceptualized too broadly
What are synonyms for gratifications?
- Fullfilments
- Pleasures
What are affordances?
Visual stimuli in our environments that suggest how we are supposed to interact with a certain object
What is the overarching goal of User & Gratification research?
To understand the interaction between the origins of media user needs + context
What are the aspects of the MAIN model?
This model states that the affordances provided by cues to the user, trigger cognitive heustics about characteristics of the content that they consume
- Modality ( The different methods of presentation (audio, pictures) of media content, appealing to different human persceptual systems (hearing, seeing)
- Agency (Refers to the agency affordances of the internet that allows us the be agents of sources of information
- Interactivity (Defined as the affordance that allows the user to make real-time changes to the content in the medium)
- Navigability (Refers to the affordance that allows user movement through the medium)
What are the potential new gratifications of the aspects of the MAIN model?
- Modality: Realism, coolness, novelty, being there
- Agency: Agency-enhancement, Community-building, Brandwagon, Filtering/tailoring, owness
- Interactivity: Interaction, activity, responsiveness, dynamic control
- Navigability: Browsing/variety-seeking, scaffolding/ navigation aids, play / fun
What are the benefits of good aesthetics?
- Technology acceptance
- Commercial value
Through:
- Status & Identity
- Perceptions of usability
What is the defenition of an Aestethic experince?
Pleasure attained from sensory perception during an experience of any kind with an artwork, product, landscape (Hekkert,2006)
Pleasure of - visual sense, auditory sense, tactile sense
What is the defenition of an product experience?
The entire set of experiences elicited by the interaction between a user and a product, including pleasure derived from the senses, and the meaning we attach to the product
What are the empirical approaches of studying Aesthetics?
Experimental approach:
- Test the effect of isolated elements of an object/ form on human preferences
- General laws of beauty (mathematical mode)
- Individual differences are thought to be marginal
Exploratory approach
- Evaluate complete and natural stimuli rather than manipulated artificial ones
- More concerned with people’s judgement than objective aesthetic properties of stimuli
- Factor analysis
Computational approach:
- Automated methods that infer the aesthetic quality of images
- Machine learning: Train methamatical model on images with known aesthetic quality ratings
- Tease out image features related to higher quality ratings
Explicit measures of Aesthetics are:
- Attractiveness
- Beauty
- Pleasantness
- Liking
- Preference
- Aesthetic affect (kind of emotions that arouses in a user)
Implicit Aesthetic measures are:
- Eye-tracking
- Reaction time tasks
- Fucntional MRI/ EEG
What is the evolutionary psychology perspective of Aesthetics?
- Adaption: Main goal of humans is to survive and reproduce, in order to do so they have to solve many challenging situations.
- By-product hypothesis: Aesthetic pleasure is a by-product of some evolutionary adaptive functions (seeking patterns and meaning)
What are the general (cross-modality) principles of aesthetic pleasure?
Principe 1: Maximum effect for minimal means (methaphor, ambiguity)
- We want to function as economically as possible
- Pleasing when relatively simple design features provide rich information
Principle 2: Unity in variety
- Our systems like order and patterns
- Gestalt principles: Organize information
Principle 3: Most advanced yet accetable (MAYA)
- Preference of familiarity -> safe choice
- Preference for novelyty and originality -> learning new things
- Succes: Increase novelty while preserving some typicality of the design
Principle 4: Optimal match
- Consistency/ congruence of impressions of the senses
- Easier to identify, therefore increases survival value and is it more pleasing.
- Incosistency is confusing, not effective
- However, some surprise may be pleasing
What are the gestalt principles?
- Proximity
- Continuation
- Similarity
- Common region
- Closure
- Connectedness
What influences facial preferencess?
- Symmetry
- Sexuality
- Dimorphic shape (other characterstics between sexes, besides sexual organs)
What does physical attractiveness increase?
- Perceived trust
- Perceived expertise
- Liking for the communicator
Why do we care about Aesthetics?
- A marketing instrument: if you are entering a market full of visually attrative products, people may not even look at your product if it is perceivded as backwards and old-fashioned
- Signal status (group identification)
- Increase perceptions of usability
What is the realtionship between aesthetics and usability?
- Attractive products are expected to be easier to use (increased sales)
- Are actually perceived as easier to use ( tell friends, positive reviews -> increased sales)
- Tolerate more faults
What is Aesthetics according to Lavie & Travinsky?
A branch of philosophy that deals with the nature of beauty and taste, and the philosophy of art