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Psychological Terms – Ambiguous Figure
An ambiguous figure is a visual pattern—such as the Necker cube, duck-rabbit illusion, or Rubin’s vase—that can be perceived in more than one distinct way. The observer’s perception alternates between these interpretations, illustrating how top-down cognitive processes and expectations influence perception. Ambiguous figures are often used in studies of Gestalt psychology, which explores how the mind organizes sensory input into coherent forms. They demonstrate that perception is not purely passive but actively constructed by the brain, shaped by context, memory, and attention.
An ambiguous figure is a visual pattern—such as the Necker cube, duck-rabbit illusion, or Rubin’s vase—that can be perceived in more than one distinct way. The observer’s perception alternates between these interpretations, illustrating how top-down cognitive processes and expectations influence perception. Ambiguous figures are often used in studies of Gestalt psychology, which explores how the mind organizes sensory input into coherent forms. They demonstrate that perception is not purely passive but actively constructed by the brain, shaped by context, memory, and attention.
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Psychological Terms – Ambivalence
Ambivalence refers to the coexistence of opposing emotions, thoughts, or impulses toward a single object or person—such as simultaneous love and hate. Introduced by Eugen Bleuler in 1910 as a key feature of schizophrenia, the term was later adopted by Sigmund Freud to describe conflicting feelings in interpersonal relationships, particularly within psychoanalysis. Ambivalence illustrates the complexity of emotional life, where opposing drives can coexist and create psychological tension. In modern psychology, it is studied within the contexts of attitude conflict, cognitive dissonance, and attachment theory.
Ambivalence refers to the coexistence of opposing emotions, thoughts, or impulses toward a single object or person—such as simultaneous love and hate. Introduced by Eugen Bleuler in 1910 as a key feature of schizophrenia, the term was later adopted by Sigmund Freud to describe conflicting feelings in interpersonal relationships, particularly within psychoanalysis. Ambivalence illustrates the complexity of emotional life, where opposing drives can coexist and create psychological tension. In modern psychology, it is studied within the contexts of attitude conflict, cognitive dissonance, and attachment theory.
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Psychological Terms – Amblyacusia
Amblyacusia (or amblyacousia) denotes impaired hearing or diminished auditory sensitivity. It may affect one or both ears and can result from damage to the auditory system or neural pathways. The condition varies in severity, ranging from mild hearing loss to near-deafness. Understanding amblyacusia contributes to the study of sensory adaptation and the brain’s ability to compensate for partial loss through other senses.
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Psychological Terms – alpha-methylparatyrosine
A compound similar to tyrosine that binds to the enzyme tyrosine hydroxylase, inhibiting its ability to convert tyrosine into dopa. This results in reduced production of catecholamines such as dopamine, adrenaline (epinephrine), and noradrenaline (norepinephrine). Commonly abbreviated as AMPT
A compound similar to tyrosine that binds to the enzyme tyrosine hydroxylase, inhibiting its ability to convert tyrosine into dopa. This results in reduced production of catecholamines such as dopamine, adrenaline (epinephrine), and noradrenaline (norepinephrine). Commonly abbreviated as AMPT
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Psychological Terms – Alpha Motor Neuron
The largest spinal motor neuron type, responsible for activating skeletal muscles through alpha fibres. It’s also referred to as an alpha motoneuron, and contrasts with gamma motor neurons.
The largest spinal motor neuron type, responsible for activating skeletal muscles through alpha fibres. It’s also referred to as an alpha motoneuron, and contrasts with gamma motor neurons.
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Psychological Terms – Alpha Movement
A type of apparent movement illusion occurring when differently sized stimuli—like bars of varying lengths—alternate with a brief interval (around 60 milliseconds), producing the visual effect of one object expanding and contracting. Also called alpha motion.
A type of apparent movement illusion occurring when differently sized stimuli—like bars of varying lengths—alternate with a brief interval (around 60 milliseconds), producing the visual effect of one object expanding and contracting. Also called alpha motion.
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Psychological Terms – Alpha Personality Factor
A higher-order trait derived from the Big Five model, proposed by John Digman (1997). It combines agreeableness, conscientiousness, and (negatively) neuroticism. The factor may indicate social desirability or emotional stability, as later described by Colin DeYoung.
A higher-order trait derived from the Big Five model, proposed by John Digman (1997). It combines agreeableness, conscientiousness, and (negatively) neuroticism. The factor may indicate social desirability or emotional stability, as later described by Colin DeYoung.
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Psychological Terms – Alpha Receptor
Another term for an alpha adrenergic receptor, which responds to specific neurotransmitters like norepinephrine and adrenaline.
Another term for an alpha adrenergic receptor, which responds to specific neurotransmitters like norepinephrine and adrenaline.
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Psychological Terms – Alpha Reliability Coefficient
Refers to Cronbach’s alpha, a statistical measure assessing the internal consistency or reliability of a psychological test or scale.
Refers to Cronbach’s alpha, a statistical measure assessing the internal consistency or reliability of a psychological test or scale.
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Psychological Terms – Alpha Wave
An EEG (electroencephalogram) pattern showing high-amplitude brain waves at 8–12 Hz, typically present during calm, relaxed wakefulness when a person’s eyes are closed. Also known as alpha rhythm.
An EEG (electroencephalogram) pattern showing high-amplitude brain waves at 8–12 Hz, typically present during calm, relaxed wakefulness when a person’s eyes are closed. Also known as alpha rhythm.
