Search results for "Sensory system"

Titchener's T in Context Delimited, Discrete Monomotif Patterns

2014

Exploring Sensory Memories

2019

Lee Strasberg and other acting teachers developed sense memory exercises that teach an artistic re-enactment method to explore the interplay of sensory perception and emotional memory.
 Apparently, secondary sensory stimuli often trigger flashbacks for traumatised people. From my experience as an actress, I learned that the sense memory method is a controlled triggering of emotional memory that functions in the same way. Many anthropologists consider sensory experiences and emotions a relevant topic, but how can we teach students to deal with these phenomena?
 After looking at sense memory exercises against the backdrop of neuroscientific findings, I will consider why and how we s…

P24. Classical brain stem syndromes: Myth or reality?

2007

<Pheromones> and behaviour of rodents and primates

1987

Abstract This paper reviews the concept of the ≪pheromone≫ as applied to behavioural studies on mammals with particular emphasis on rodents and primates. It is concluded that although the olfactory sense is very important in many representatives of these orders, the term pheromone is often used too uncritically in such species. Odours may certainly change behaviour but: (a) it is difficult to identify complex specific chemicals underlying such effects; (b) the response often depends on the nature and experiences of the recipient animal; and (c) many behaviours in such animals are modulated by a variety of sensory inputs. Perhaps ≪sociochemical communication≫ would be a better term to apply …

The goldfish--a colour-constant animal.

1996

A series of either thirteen or fifteen coloured test fields with hues from blue through grey to yellow were presented on a black background. Goldfish were trained on a bluish-grey test field by food reward. In the training situation, the setup with the coloured papers was illuminated with white light. In the test situation, the colour of the illumination was changed to blue or yellow. In both test illuminations the goldfish preferred the training field in the same way as under white illumination despite the fact that this test field stimulated the cone types very differently from the training situation. As test fields were present that excited the cones in exactly the same way as under whi…

Tonically Active Neurons in the Monkey Striatum are Sensitive to Sensory Events in a Manner that Reflects their Predictability in Time

2002

It is now well established that tonically active neurons (TANs) in the monkey striatum respond to motivationally relevant sensory events, such as conditioned stimuli to which the animal had to react correctly to obtain reward. Recent findings obtained in our laboratory suggested that stimulus prediction may influence the responsiveness of the TANs. In the present study we specifically investigated the effects of temporal aspects of prediction on the responses of single TANs recorded both in the caudate nucleus and putamen of two macaque monkeys. Three different behavioral situations were employed: (1) an instrumental task, in which a visual stimulus triggering a rewarded movement was preced…

Null Effect of Set Size in Lexical Decision

1995

The effect of set size indicates that recall of a word is greater when its cue is associated with fewer words. This study was designed to replicate this result with lexical decisions of 18 students. In spite of obtaining the set-size effect with cue recall, it was not observed with lexical decision.

ADDITIVITY FROM MULTIPLE PRIMES IN IDENTIFYING BACKWARD WRITTEN WORDS

1988

Activational theories of memory assume that activation from several sources adds up to an intersecting node. We tested this idea in one experiment where we kept constant the number of primes presented and we manipulated the number of different primes related to the target, the number of presentations of the same prime, or the same target, presented as a prime. We used a task in which the target was always a word, which appeared written backward and had to be identified. We found a strong effect of target repetition and diminished priming in the condition in which the target was repeated. We obtained additivity (greater activation) mainly in the condition in which we presented several diffe…

Effect of Prime and Target Repetition on Lexical Decision Time

1992

On a prime-target lexical decision task we manipulated the relatedness between prime and target (semantically related or unrelated), the number of repetitions (from 1 to 5), the type of the repeated stimulus (only the prime, only the target, or both), and the stimulus onset asynchrony (within a range of automatic activation from 60 to 400 msec.) to find whether semantic and repetition priming are additive (or interact), and whether there is episodic priming in an automatic, nonconscious way. Analysis showed repetition and semantic priming were additive rather than interactive. No episodic automatic priming was found. Results are discussed in terms of the predictions made from the main theo…

The Adequate Stimulus

2008

The term adequate stimulus describes that class of environmental phenomena that requires the least amount of energy to elicit a percept mediated by a particular sensory system, implying that the receptive organs of that sensory system are specialized to detect those phenomena. It was difficult to transfer this concept to the perception of pain and to the nociceptive system. Many different stimuli may cause pain (pin prick, burn injury, freeze injury, inflammation, etc.), none of which needs particularly low amounts of energy. The common denominator of those stimuli is that they threaten to cause tissue damage (in Greek: νoξη Noxe). Hence the adequate stimulus to elicit pain is traditionally…