ⓘ Mental operations
Mental operations are operations that affect mental contents. Initially, operations of reasoning have been the object of logic alone. Pierre Janet was one of the first to use the concept in psychology. Mental operations have been investigated at a developmental level by Jean Piaget, and from a psychometric perspective by J. P. Guilford. There is also a cognitive approach to the subject, as well as a systems view of it.
Since Antiquity, mental operations, more precisely, formal operations of reasoning have been the object of logic.
In 1903, Pierre Janet described two types of mental operations:
- disinterested operations - escaping the control of reason.
- reality operations - mental operations under the control of logic;
Jean Piaget differentiated a preoperational stage, and operational stages of cognitive development, on the basis of presence of mental operations as an adaptation tool.
J. P. Guilfords Structure of Intellect model described up to 180 different intellectual abilities organized along three dimensions - Operations, Content, and Products.
2. Logical view
According to most logicians, the three primary mental operations are apprehension understanding, judgement, and inference.
Apprehension is the mental operation by which an idea is formed in the mind. If you were to think of a sunset or a baseball, the action of forming that picture in your mind is apprehension. The verbal expression of apprehension is called a term.
Judgment is the mental operation by which we predicate something of a subject. Were you to think, "That sunset is beautiful" or "Baseball is the all-American sport" is to make a judgment. The verbal expression of judgment is the statement or proposition.
Inference or reasoning is the mental operation by which we draw conclusions from other information. If you were to think, "I like to look at that sunset, because I enjoy beautiful things, and that sunset is beautiful" you would be reasoning. The verbal expression of reasoning is the logical argument.
3. Developmental view
Jean Piaget identifies several mental operations of the concrete operational stage of cognitive development:
- Decentering - where the child takes into account multiple aspects of a problem to solve it. For example, the child will no longer perceive an exceptionally wide but short cup to contain less than a normally-wide, taller cup.
- Transitivity - The ability to recognize logical relationships among elements in a serial order, and perform transitive inferences.
- Reversibility - the child understands that numbers or objects can be changed, then returned to their original state. For this reason, a child will be able to rapidly determine that if 4+4 equals t, t−4 will equal 4, the original quantity.
- Seriation - the ability to sort objects in an order according to size, shape, or any other characteristic. For example, if given different-shaded objects they may make a color gradient.
- Classification - the ability to name and identify sets of objects according to appearance, size or other characteristic, including the idea that one set of objects can include another.
- Conservation - understanding that quantity, length or number of items is unrelated to the arrangement or appearance of the object or items.
Piaget also describes a formal operational stage, with formal operations of abstract thinking: hypothesizing, hypothesis testing, and deduction.
4. Psychometric view
According to J. P. Guilfords Structure of Intellect SI theory, an individuals performance on intelligence tests can be traced back to the underlying mental abilities or factors of intelligence. SI theory comprises multiple intellectual abilities organized along three dimensions - Operations, Content, and Products.
- Operations dimension
SI includes six operations or general intellectual processes: Cognition - The ability to understand, comprehend, discover, and become aware of information. Memory recording - The ability to encode information. Memory retention - The ability to recall information. Divergent production - The ability to generate multiple solutions to a problem; creativity. Convergent production - The ability to deduce a single solution to a problem; rule-following or problem-solving. Evaluation - The ability to judge whether or not information is accurate, consistent, or valid.
- Content dimension
SI includes five broad areas of information to which the human intellect applies the six operations: Visual - Information perceived through seeing. Auditory - Information perceived through hearing. Kinesthetic -through actions Symbolic - Information perceived as symbols or signs that have no meaning by themselves; e.g., Arabic numerals or the letters of an alphabet. Semantic - Information perceived in words or sentences, whether oral, written, or silently in ones mind. Behavioral - Information perceived as acts of people.
- Product dimension
As the name suggests, this dimension contains results of applying particular operations to specific contents. The SI model includes six products, in increasing complexity: Units - Single items of knowledge. Classes - Sets of units sharing common attributes. Relations - Units linked as opposites or in associations, sequences, or analogies. Systems - Multiple relations interrelated to comprise structures or networks. Transformations - Changes, perspectives, conversions, or mutations to knowledge. Implications - Predictions, inferences, consequences, or anticipations of knowledge.
Therefore, according to Guilford there are 6 x 5 x 6 = 180 intellectual abilities or factors. Each ability stands for a particular operation in a particular content area and results in a specific product, such as Comprehension of Figural Units or Evaluation of Semantic Implications.
5. Cognitive view
Following on the footsteps of Silvio Ceccato, Giulio Benedetti describes several types of mental operations:
- operation of representation - evoking a mental image;
- attentional focalization - focusing attention on something;
- temporal basic operating scheme - variation of attentional focalization.
- attentional discarding - stopping our attention on an object;
- operations of memory;
- operation of comparison;
- spatial basic operating scheme attentional movement - passing attention from one part to another of the attentional field;
6. Systems view
Taking into account all mental processes, the following types of mental operations have been described:
- affective operations - affective evaluation of the world and self;
- regulative operations - verbalization of needs, motives and feelings, and self-control.
- perceptual-motor operations e.g., eye-hand coordination;
- practical operations, pertaining to executive functions;
- expressive operations emotional expression;
- cognitive operations - production and verbalization of images and thoughts;
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